I haven't been terribly impressed by Bryant Lake Bowl's food and service, though I do think the place is fairly cool and has an unusual concept that keeps the neighborhood edgy and smart (unlike, say, Tiger Sushi around the corner).
First, on the few occasions I've been to BLB, I've noticed the service is slow and not overly warm.
Second, I'm not impressed with the food. There are only two or three vegan options on the whole menu and none of them were particularly good, in my opinion. The tofu scramble was slight and bland. The mock duck spring rolls were decent, but only worth getting for the happy hour price of $4.50 (normally they cost a whopping $8). I've also had a black bean burger, which is only vegan if they serve it to you on a baguette, instead of a bun. Well, baguettes and burgers are not meant to go-together, so that was a mistake on my part; also, the burger itself is clearly just a Gardenburger patty you could get at a grocery store. The pad thai ($12 with tofu or mock duck) is mediocre at best, overcooked with too much soy sauce and not enough peanuts and tofu/mock duck. I also tried one of their specials, a tofu cashew curry ($15), which was tasty, but way too expensive. You could get a better curry for 30% less money at Jasmine 26 or Sen Yai Sen Lek.
Third, the beer selection isn't great, and what you get is over-priced. $7 for a can of Sapporo? That's highway robbery.
BLB, you got a nice concept, but you need some new dishes (how about a seitan burger? or a faux chicken burrito?) to get my business.