Tried out Banh Banh and it gets from me. Basic fit-out is hipster-minimal (yes they have those stupid lightbulbs) and incredibly noisy inside - it won't work for old deaf relatives. Staff are friendly not snotty. Food excellent- fresh, tasty, zingy flavours - and they don't tone down the chili too far. Diverse clientele, not packed out exclusively with the white and affluent. Not bargain-cheap but not as expensive as many of the competition nearby (it's way less pretentious/moneyed than Kricket, way better food for the money than Rosa's Thai Cafe for instance.) Most big dishes hovering at £9-11ish so you can't fill up for under a tenner, but you could certainly stuff yourself stupid for £15. Excellent green-papaya salad, fiery pho and excellent (huuuuuge) bowl of bun (cold noodle salad with veg, spring rolls, bbq-pork patties etc) which could easily feed two people. Happy with it overall.