The original Diablo III sucks so bad. However with RoS and whatever changes now it is so much better.
I just couldn't continue playing it because build really depends on drops and drops are random.
Have a nice set now? Good, next patch it might be gone. Last time I can GR38 solo but now I can't even GR25 properly.
There's a lot of playability (if you don't mind making many characters) and experiment with builds (the mean time between 2 good drops can be up to months! or in some case just days apart, so random).
The thing about D3 is that either you steam roll the enemy or you can't pass. In reality no one actually plays it tough or at middle point, people just prefer to steam roll because you get to do more rifts or whatever per hour and that maximizes your drop possibility.
D3 was stupid la, you have to load a scene just to play. How many times did I play Act III on that place, after the castle and then bridge of korsick and hit until er that donno what fella siegebreaker I think.
Repeat until bored. Money also so little. Play until realize it's stupid.
RoS adds a lot, besides the added story and character there's at least GR and gems and what not. Roll like silly, become billionaire already but meh, lazy to start new characters.
I started with monk, then a bit of DH, then play CRU. Then hunting ruby for CRU using my DH, my DH got stronger end up sticking to DH.