As clean as you expect a cheaper buffet to be, though maybe a bit more expensive due to the selection. They were doing their best to unclog pieces of fish from the chocolate fondue fountain (ok it wasn't fish, but something) the last time I was there but having had it before I wasn't sad to not get any (it tastes fairly horrible). They have a pretty solid selection and the food is pretty good.
I give it slightly more than a meh but not quite yum.