I have played at least all the "Real" Woi and Boi private servers and have yet to find one that has kept me there, half of the servers is you getting loads of zen but having to spent loads of coin for gear and pets, I have yet to find a server that helps you out with a "Good" pet for when you start off or a server that has custom stats and growth for pets most are very **** and pets have terrible damage etc and having you spend a lot of coin just to get their stats decent to the point where it can do damage.
If anybody knows a Server that does not force you to donate for zen or pets and can keep me there instead of pushing me away with little things and "Must" have a high xp and drop rate I can't stand a server that has good exp and super bad drop rate.