I've been messing around on this for the past week and it's quite a bit of fun. It is still in open beta, but it's guaranteed access, free to play, no purchases required to progress through the game, and when it goes live they are not wiping characters (the cash shop is up and running, and I think they are using player purchases to help fund development as they push to release).
Anyways, with no need to buy the game, or pay a monthly fee, or make in game purchases, I would recommend checking this out, as a change of pace if nothing else.
Here's a picture of my Cleric in the 27-30 zone (Level 27 in the picture).