Chisou Japanese Restaurant Knightsbridge — Restaurant in London

This was the worst dining experience we had during our 7 days in London. Would not recommend this establishment to anyone who cares about their food because the staff and kitchen here definitely don’t. We were at Harrod’s and decided to come here for sushi because it was close by and had a high rating. The person who took our order kept trying to get us to order the grilled skewers as well but we only wanted sashimi and sushi. So we ordered two uni/sea urchin chawanmushi, the seaweed salad and the omakase sashimi to start. The chawanmushi was nice and smooth, but nothing special and a bit salty for my tastes. The uni on top was very high quality, sweet and creamy, and the star of the dish (as expected for the 14£ tag). Things started to go downhill when I bit into sand in the seaweed salad. My husband immediately called one of the staff, told him about the sand and had the dish sent back. We were both surprised by the lack of reaction from the staff, who just said “ok” and took the plate away. The sashimi was served next and, again, was excellent in quality. The scallops were particularly good. But then my husband found a bone in a slice of the white fish, I forget what it was called but it was the centerpiece of the omakase. My husband was furious and asked for the manager, but a second staff who received our complaint (different from the first person) said he would “take care of it and speak to the kitchen”. They replaced the white fish with rainbow trout, but we were pretty much done and just wanted to leave. The second staff apologized and said that the previous staff didn’t speak English so he didn’t understand our complaint with the salad, and the fishbone was unfortunate but "it happens" and none of the other customers there had any problems. Well you'll be serving bone to future customers with that kinda attitude. When we were about to ask for the bill, the second staff brought us a complimentary shrimp tempura as the kitchen's apology. Some apology this was, it was basically a greasy dish of tiny frozen shrimp thrown in beer batter and drenched in ponzu. You could literally taste the freezer. To call it tempura is an insult. The manager later brought us the bill and “apologized”, but she was laughing and all smiles and basically didn’t give a pence about our opinion. My husband saw the service charge on the bill and said we wouldn’t be paying for the horrible service, to which she said “ok, that’s what I thought, too”. Well if you thought that then maybe don’t put the service charge in as an actual gesture of apology. We got better service at Chinatown for a fraction of the price. And to compare to other fine dining establishments, we had excellent meals and fantastic service at Maison Francois and Elysan Street the...

I had a terrible experience at this restaurant. I ordered Sea Urchin Nigiri, and the sea urchin looked visibly unfresh and slimy—a clear indication of poor quality. Despite this, I gave it a try, but the taste was so rotten that I had to spit it out immediately. The manager, who was standing right next to me, laughed and said, "You don't like it," in a teasing tone, as if I had never tasted sea urchin before, and then walked away.

They insisted that the sea urchin "tastes like this," but I have eaten sea urchin many times in my life and at least know what "safe food" tastes like. This sea urchin definitely tasted unsafe. A good quality sea urchin should never be slimy, as shown in the picture I took.

What’s even more shocking is that this restaurant charges high-end prices but has staff—including the manager—who clearly lack basic food knowledge. A sensible restaurant would never even put food of such poor quality on a guest’s table.

The dismissive and arrogant attitude of the manager made the experience worse. Instead of addressing the issue, they acted as if the problem was with me rather than their food quality. I cannot recommend this place to anyone who values fresh, safe food, or knowledgeable and respectful customer service.

Updated: Recently I have shown the sea urchin picture to my friends who are working in restaurant industry, they confirmed it is very basic knowledge that serving sea urchin in this slimy condition could be very dangerous and encouraged me to report it to health department which I would do. Hopefully people would be more carefully of...

Had dinner in the restaurant an hour ago, it was really really disappointing! One of the worst meals I have had this year. The girls who took our order made several mistakes and missed our sashimi omakase order, so we need to keep asking where is our food. We also paid £38 for a sea urchin sashimi (around 5 piece of sea urchin) which would be acceptable was it fresh i.e sweet and creamy, but it turn up very bitter and not creamy at all - we asked them to check if that’s fresh, because it shouldn’t be how a fresh nice sea urchin should be, then they manager came, said it had just delivered from Canada, saying that Canadian sea urchin mean to be a bit bitter. Don’t know if that’s true, but definitely it doesn’t worth £38. I’m happy to pay £38 for a creamy fresh sweet sea urchin, NOT a bitter ones. Before we left the waitress made mistake mistake for other tables, manager went to explain (more like argue) there were only 3 or 4 tables of clients including us and 3 people serving. It’s not even that busy, 2 tables order got wrong and the way the manager is dealing with things..... turn our impressions of the restaurant from...