I'm playing it right now solo with no previous experience and will echo that 3000 hours is no exaggeration if you have no idea how this game works. If your new you'll come to the hard realization that following a build guide is an absolute must. Doing whatever you like with the passive tree and gear can get you through 10 acts but in the endgame YOU WILL GET DESTROYED. What seems like lots of choices is really a clever trick IMO. The game is really fun when things are going in your favor but is too often a convoluted mess.