Welcome Garnasha!!

You'll see this server is really class balanced and I don't think there is 1 class that has way more players than the others.
If you want non-extended and non-merch class......Hmmm....Maybe a rogue/stalker, I didn't see many here.
They really encourage RP and I like it too.
Hmm...Specific stuff... Well, there's so many custom stuff here that'd be a really big list, going from wings and hats through pets and mining/fishing

To worry about, to make your life easier, there's a reset NPC that's free until lv40 so you can make a strategy out of it

A tip: To make money, fishing and mining really helps, I mean a LOT in the beginning
Well, good luck, any questions just ask on @main channel in-game or here on the forums. Have fun
EDIT: Panda ninja strikes again