1- We have several custom npcs, the most notables are:
There is a paying warper that warps to city and dungeon's first level, you got to unlock each warp (aka go there at least once) to use them. Price depends on the map to unlock, varies from free to 25k usually. Warp cost a little each time after unlocking.
There is a reset npc, it's free until level 40, after that it costs zeny, the higher level you are the more expensive, after level 50 it asks for an item as well.
We got a mining system you can mine for all sorts of ores at a spot in coal mine.
We have many npc for our allegiance system (Light versus Dark), see this section in forum:
http://pandoraonline.net/forum/forumdisplay.php?fid=9
The npc to register your allegiance is located in Prontera, near the tool shop.
We got bankers and pvp warper in most major towns and DB rooms with DB seller.
2- Lately it's about 20 people at night, less during the day. We are in EST time (GMT -5)
3- The server's first anniversary will be in October.
If you decide to make this place your home, don't hesitate to post in the introduction section.
^_^