Yep — I was there last week. Overall, I liked it. They're aiming for an informal atmosphere, and I think they've hit the right note; the staff are friendly but not overfriendly, the tables and chairs are canteen-style but a sturdy kind of canteen-style, and the decor is "cool" but not overpolished. The food is also quite reasonably priced. The quality of the food was slightly lacking, though. First of all, almost all of it arrived lukewarm. We'd been assured by the waitstaff that dishes would arrive as they were ready, and so we shouldn't expect things to come all at once. Given this, why wasn't any of it hot? I'll assume this is a problem that will be sorted out once they've been open a bit longer, though. Second, many of the dishes could really have done with a bit of seasoning. Neither chilli nor salt was in evidence in most of them; in fact, the only items that really tasted of anything were those that included intrinsically-salty ingredients like chorizo or goats' cheese. We had a chat to a staff member after our meal, and it turns out that this is a deliberate decision to allow customers to salt and chillify their food to their own taste. I am not very keen on this idea, but it may work out for them. I've put a more extended writeup here (Randomness Guide to London).