As first-timers, my boyfriend and I decided to order the ultimate tasting menu "Zenith"—his vegetarian, mine vegan. It was a non-stop 2.5 hours of eating, which might sound like a lot of food but actually not. Every course was miniscule, and you really only get to get a "taste".
The dishes were very creative and the presentation was beyond beautiful. I enjoyed most of what I had, and even wished that I had ordered the full portion of some of them. However, there were also a few weaker ones that were just okay. Thinking back, I'd say this particular tasting menu is only good for people like us—those who are here for the first time and aren't exactly sure what to expect. Yes, it was spendy at €110/person, but in my opinion worth it. If I come back, though, I'd order a la carte instead, where I'd get more of the good stuff at a lower total price.
As some pointed out below, the atmosphere left a little to be desired. I felt it was too"zen", too plain, too simple for this price point and could definitely use some fixing up. Service was prompt and polite. Staff looked dapper, except for the "sommelier" (who also took orders here), who appeared a bit unkempt in comparison and didn't look at all presentable in a suit jacket so tight that the one button (out of two) he managed to fasten was on the verge of snapping the whole time...
Cons: atmosphere, expensive