GIYF 

BTC Guild is PPS, not SMPPS, not PPLNS.  You get paid whether we find blocks or not (thus the fee).  You get credited almost instantly (normally within 10 seconds of submitting a share), and can withdrawal as soon as you have > 0.1 BTC in your account.

We're also one of the oldest running pools, and stability has been excellent ever since the last server move a few months back.  The only times the pool has been down since February were when doing restarts to update pool software.