I think it should either warn you before the last fight of a level that it will automatically take you to the next level after the fight, or give you a choice of staying on the same level longer.
I think it's pretty fun so far, but there were a couple things that I thought could be improved.
1.) The experience bar doesn't show the correct amount you need for that level (typos or else it shows experience for the wrong level).
2.) A completed quest stayed in my quest log (after re-logging the quest is gone, but the information is still there).
3.) Occasionally a mob will keep wandering aroundand fighting after it is dead (although I can't hurt it because it flashes to its alive state and attacks, then is dead again).
4.) There were just a lot of minor typos that bothered me (stats points < stat points, also the armor that goes in the Body slot has 'slot:torse' on it. I can see Slot: Torso, but keep it consistent).
One suggestion I have is to have the chatbox open at all times, because as it is I have to press Enter to open it, and that makes it hard to talk to other players. I would also like the world map to show NPCs, or else make maps for each area that show NPCs.