PV does have it's glitches. Known is that if you deal too much damage or pull and aoe too many mobs at once, the client is prone to crash. If I do a fast run on my bm, and pull pv in thirds, I will have about 3 seconds after I leave pv to log out to the character selection screen, or my client will crash.
It can be annoying at times, but I can't complain too much. Private servers come from leaked test server files, which have bugs to begin with. So, all things considered, I would have to say Agatio has done a wonderful job with this server, and he is very fast to fix what bugs he can.