I liked it a lot. It's inside the "W" Hotel which is a bit fanatically over-cool, and it features a ridiculous amount of red neon, but the menu is good, the place is chic, and it's fun. With my guests I tried a couple of dishes that are tricky to prepare, and the results were excellent. Overall I thought the menu was very appealing although, as a person who doesn't eat meat the selection of options was not that large. The food we ordered was very nicely prepared, plated, and quiet delicious with decent but to excessive portions.
The staff was quite friendly and helpful, although only so-so in terms of being attentive. I think the owners must put a lot of emphasis on hiring very attractive staff, which is fine, but the youth of the staff comes at the expense of experience. That's not a problem at a normal restaurant, but at a place with a good menu and substantial prices, a deeper familiarity with the wine list and menu might have been nice. That said, I was very happy with the experience and have already been back once.
The place only seems to fill up later in the evening so arrive early if you want something very quiet where you own the place, or late if you want a scene that is packed.