I have two of them at two different sites. They’ve been completely fine for me, apart from the problems from the 1.8.x firmwares which probably should never have reached the ‘Release’ channel. (The recently-released v1.9.2 appears to have fixed all my issues from 1.8.x)

I’m definitely not pushing either of them very hard or doing anything particularly fancy, but they’ve certainly been a big step up from the aging Apple routers I’d been using before, at least for me.