What has happened to Sushi Oyama, there used to be people queueing out the door and now there's only 20 people on a Saturday night? We arrived and waited forever to be seen, let alone seated. The chefs were head down having obviously seen us but were embarrassed about us not being seen to. In most Japanese restaurants all of the staff welcome you regardless of their role. We were seated opposite the bar which no longer had people sitting at it but had been turned into an clearing station eyesore reminiscent of a cheap take out place which would undoubtedly scare customers away. The platters for the high end sashimi orders had been wrapped in clingwrap and stacked on the shelves that once had exclusive sake and spirits. Service was appalling, the waitress couldn't understand anything, got the order wrong, didn't offer drinks, the miso soup didn't come until we asked near the end of the meal. The worst was I specifically asked whether what I had ordered had crab in it as I have an allergy, she responded, "No, fake crab!" which of course it wasn't, thankfully I didn't go to hospital but had a very uncomfortable night of nausea. The food was terrible, huge chunks, difficult to eat, unlike Japanese food, a huge disappointment to what we'd experienced there before. It seems that new owners who previously had a take out have brought the place, likely costing them a fortune, and are in the process of running it into the ground losing all of their hard earned money. I've seen this happen to other restaurants again and again. Eventually somebody will buy it for next to nothing and will resurrect the old Sushi Oyama but until that happens give it a wide berth and stay away like so many others have done. Or maybe somebody will sue them for an extreme allergic reaction to their "fake crab"... My suggestion to the owner. You're obviously losing money, clean up the bar, employ experienced attentive staff, train them to upsell or cut your losses and put the place on the market.