Comparing D3 and PoE is like comparing summer camp and boot camp.
In D3, Hi! welcome to the game! Here are bunch of stuff to get you started. Oh you killed your 1st boss? CONGRATULATIONS have some more legendary loot!! You've been playing for hours and feeling like not getting enough loot? Here! have some more legendaries!
In PoE, Alright you maggots! here are some basic rules and take this piece of crap and get killing. GO! GO! GO! 1st boss kill huh? WELL WHAT THE HELL ARE YOU LOOKING AT ME FOR, DO I LOOK LIKE A FRIGGIN' CHARITY TO YOU? Get your ♥♥♥ to the next stage GO! GO! GO! What's that? you've been playing for hours and nothing good? BOO F!@KING HOO! You want uniques? You gotta grind like a cheap hooker and work like a kid in a chinese sweatshop
I guess what I'm saying is, in D3, there are lots of hand holding, nurtring and caring. While PoE will abuse you, drag you through mud, abuse you some more and then maybe, just maybe throw you a bone but for some reason, you want to keep going and keep coming back for more.