It's been an amazing Sunday evening spent in the care of the chef and the team. We (re-)discovered exceptional flavours in a cosy atmosphere. It felt like a truly special parenthesis out of time, not to mention the delicate dishes. They made our taste-buds travel to what would be an authentic Japanese-style experience. I cannot believe it took us so long to go to that restaurant and I would say it's the best-kept secret in London. Anyone having lived in Japan would surely enjoy this place as much as we did.

What a gem! Lovely and tiny space behind Oxford Street. The food was delicious, and we ordered almost everything. Will definitely be back!

Amazing food and staff. Really enjoyed our meal and will definitely be back

We had a fantastic meal to celebrate our wedding anniversary. The food was outstanding, service was great, felt COVID safe and will certainly go again. Would highly recommend.

A slight disappointment as it came highly recommended. I ordered omakase for lunch and it was quite a long wait before the first piece was ready and one of them (sea bream) had a small piece of bone in it though the manager quickly apologised. I believe the chef responsible for omakase that day was in training as he didn't come across very confident. Although I may not recommend omakase, the sushi and sashimi set that my husband had was very good value for money.

Very hard to find great omakase with friendly chefs and a warm, welcoming atmosphere in London that isn't prohibitively expensive -- Cube being one! A gem of Mayfair.

Ordered sushi lunch set - super high quality fish at very reasonable price.

This was my second time in cubè, amazing quality food.
I went for the omakase course at the counter, great ability of the chefs. The eel nigiri was next level. I will go back as soon as possible.

Great staff. Attentive and friendly. Varied and impressive menu. Everything we ordered was fantastic

Great lunch set !

Always outstanding food and drinks menu. Felt distanced and safe. I can not wait for the bar to open again.

Cubé exceeded my expectations yet again!

We had an incredible English sparkling rosé called Black Chalk. Usually I’m not keen on rosé or English wine but I cannot recommend this one enough! It also paired excellently with tasty eel donburi (unagi don).

Great Japanese restaurant. Miso glazed aubergine is lovely.

Recently I had the best sushi there. I'm from Japan and it wouln't be easier to find anything better than Omakase sushi at Cubé Mayfair. The chef used the best ingredients from all over the world and made sure my favourite were included. I had amazing eel from Cornwall. Yes, Cornwall! The service was excellent too, authentic omotenashi hospitality from Japan.

Quality of the fish at Cube is the best I've found in London, the staff and service is genuinely delightful and it was lovely to go back after the lockdown. The set lunches are incredible value and the chef gave us chu-toro and turbot as part of our sashimi set - extremely generous. Can't recommend highly enough

Outstanding food and service is impeccable!!! Highly recommended...

This was the best choice for my first post lockdown restaurant dinner. The wine, sake list is excellent and the food is always so great. Full menu available and felt safe and well prepared. Thank you!

Although it was quite empty (restaurants had just opened up after pandemic) the service was great and food was good quality.

Sushi quality was even good compare to have it on the counter, even though it was a lunch meal deal. I’ll definitely come back again.

Best sushi in London

Very solid food from people who clearly care about what they are making. A comfortable place as well, the focus is on eating well.

The best sushi I have had in London till now. Very nice quality for the price. I will recommend Omakase set than ordering dishes separately as the main good thing is the sushi.

Friendly staff and delicious food. The prices are worth it!

Stunning and authentic Japanese food, now my top Japanese restaurant of choice in London.

Food was absolutely amazing and very authentic! Service was the best too, will definitely be bringing friends and recommending to others frequently. I dare say it is the best Japanese restaurant I’ve had in London.

Amazing dinner for anniversary! The quality of the food is excellent and everything is well plated. The staff was really nice and not invasive!

寿司のお任せ大変美味しかったです！特にイギリス産の鰻には驚きました。

Always an excellent dining experience. Hadn’t been in a while and the team is always very welcoming and the chefs always give their best. Each dish is meticulously prepared and really delicious! Thanks for another great meal Cubé!

非常に美味しかったです。特に握りが良かったです。

食べ物が美味しいせいか他のところが色々と気になってしまいました。ウェイターさんがタイなしジャケットで案内されていて、最初仕事帰りのサラリーマンかと思いました。巻き寿司の海苔ももう少しだけパリッとしていたらより一層美味しかった。カウンターに座るならおまかせコース一択ですね。カウンターに座ってお皿にまとめて寿司が乗ってくるのは意外と寂しいものでした笑

Quality deteriorated significantly since opening for the omakase menu. I called ahead of time mentioning it was a birthday celebration and requested something small. They said they could arrange a candle on the ice cream on the phone but never did anything when the time came. Very disappointing.

Fantastic small restaurant that offers Omakase as well as other items. The sushi chef was interactive if you wanted him to be and the host was very knowledgeable. Off the beaten path in a very busy area. Would highly recommend.

Awesome. Was like being taken back to Kyoto. Best omakase in London

The food was perfect, but very small portions per dish. There were 3 of us, and we shared 1 bottle of the least expensive red wine, and each paid £58. Without the wine, it would have been approximately £45 each. The location, service, and ambiance were all very good.

We went to the Cube Mayfair for a lunch among three of us and found the experience very disappointing, mainly the food.
Some reviews for the restaurant:
Foie Gras Don - the foie gras was not as expected pan fried. It was not pan fried to the level which outside is slightly burned and crispy and inside soft. The sauce is way to sweet for the foie gras and rice. No other accompany garnish for the meal.
Sushi set - half of the sushi was Tuna which was slightly smelly to all of us. The other pieces were not tasty just really average sushi.
Rock shrimp tempera - coating was way too thick and the sauce was again too sweet
Teriyaki Salmon Don - Salmon again in very sweet sauce. The sashimi came with the don was fine. Thats why we could find the sushi roll tuna was bad because the sashimi tuna was actually fine.
The whole meal cost nearly 120 pounds which we all think was not at all value for money. We think the food is no where close to the price.

Endless love

we had the Sunday deal and the food was excellent, about the best value you could get for Japanese food of this standard. must more is left to be desired from the some of the service staff though. overall, a pleasant experience

We loved the intimate atmosphere and the food was perfect! Lovely staff. Cannot wait time come back !

Food was great.
We had a reservation at 21:00 and the place was empty. Last order 21:10 they told us. We had to order in a rush and everyone wanted to leave. We had dinner in 20 minutes.

Superb. The best sushi I have had outside of Japan.

Fresh ingredients