My impression of the restaurant after the first visit was a good one, with great interior design, a very personable European sommelier, good food, and efficient service. On my more recent visit I have to admit to having been slightly underwhelmed, and thinking that standards have slipped. Upon arrival my party of three was offered a table in the bar area to have some drinks. This was nice enough, but we were left alone long enough for me to begin to wonder if we were ever going to be sat at the table (this is a common risk I've found in Tokyo when you agree to a drink at the bar). Incidentally, at one point later in the evening we were all served what I think was some chilled vodkas, only to have them whisked away when the waitress realised she had served the wrong table. I suspect there is a better way to recover from such a faux pas! Later the main meals were served to the wrong people, a situation that we rectified ourselves. Not what you'd expect from a restaurant of such pretensions as this.
Eventually we were led to our table and menus were handed out, but only one menu showing the tasting menus was given, which meant that after handing the menus around I didn't really get to see what was on there properly until they arrived to take the order. Nevertheless I decided to order the chef's tasting menu and the bottomless glass of Mumm (now that's a good idea!).
The tasting menu consisted of an amuse of something foie gras-ish on a spoon, a sampler of tidbits including some smoked salmon and fish eggy and creamy things, a quite good foie gras ganache, some fairly average scampi and scallop served in a bowl with saffron cream soup, a main of a fairly bland, small piece of rare grilled beef with creamed spinach, what tasted like re-heated potato and some onion "marmalade" (except the onion was whole), then a sampler of desserts followed by some petit fours and coffee. I think there was one dish I can't remember but, to be brutally honest, either the food wasn't that memorable or the company was way more stimulating.
Even though they just scrape into my three star level, I'm sorry to say that I won't be rushing back to Aquavit anytime soon unless there is a proper revamp. The staff are pleasant enough, but they do not quite offer a level of food and service equal to the image and the price.