Awesome MMO. Slowly easing my way back to it now. It may be a wow clone or what not, but it does have challenging dungeons / raids. At least compared to things like swtor and gw2. It is all about progression and all that stuff. There are a few dated things they have when compared to gw2, but that is to be expected. It however makes it up by tons of different choices to make per class (only 4 classes, but each have 8-9 souls in each). You can have 3 souls at once (souls act as talent trees AND skill trees) and you can switch between different sets on a whim, up to 5 sets i think.
Definitely worth a shot, the dungeons and raids are all fun as hell if you can learn them. Oh, and the f2p is really f2p. The only things you get from paying are cosmetic things, bag/bank slots, 1 extra soul per class that was introduced in the expansion, and char slots. Which...are all available through an ingame currency system run by players. Sounds funky, but the mere fact I can get everything I need without paying a dime is fine with me. All ingame content as in areas and dungeons are open and unrestricted to f2p players.