Very few complaints, but one of them is a big one: this place (admittedly during an August heatwave) was a cross between a sauna and a greenhouse, so hot that we slept absolutely terribly. We were in town for two nights for a wedding, at which my partner was maid of honour, and booked this place because it was perfectly located: which it is! The problem is that because of the heat we slept so little the night before that we had to leave the wedding four hours early—which rather ruined the whole point of the trip. We tried everything Johny suggested, but the only thing that would work in that heat would be an aircon unit (& it wouldn't need to be a big one).
Otherwise the place is everything you could hope for: compact but well laid-out, the fold-down bed works really well. Johny is prompt to respond, and the amenities work well. Location pretty much perfect if you need to be in central Bristol (only minor quibble is the strong smell of stale beef dripping from one of the next-door restaurants, not too bad once you're inside but pretty unpleasant on the way in). Just avoid if the temperature climbs much above 23 (unless Johny has sorted aircon by the time you read this!).