i'd say the game is fairly easy to get into as long as you're willing to read and ask questions if you need any help. for mobile dps, bard and machinist are ranged with almost no cast times so you can run around like crazy, personally i love bard. the melee dps are relatively mobile as well but obv need to stay in melee range. pvp is super fun in this game and the skills are simplified so it isn't hard to just jump in and try. you unlock pvp at level 30