I play on Lock. Mostly by default, as it's one of the only rooms available to me given my location. Not sure what, specifically, to say about it... It's ok; not terrible, not special, but will have to do for the time being. There's tolerable traffic and enough fish at micro stakes SNGs (where I mostly play). Oh, the vault feature is nice; I leave most of my capital in there, untouched, and make sure my BR is always plenty padded.