NO SPOILERS
Took the kiddos to see it this weekend... Risking the wrath of critics everywhere, I liked it better than the original. Now don't get me wrong I liked the original. but two things stood out to me with it (the original) that were problematic for me. 1) Starlord's "Bitch" comment at the end. It just struck me as completely unnecessary. 2) Starlord's really wooden acting. He just wasn't as good as the other characters (including Drax who was great)
Second suffered none of these problems. Only thing I could complain about was the flat spot in the middle when they get to daddy's planet. And even that was punctuated with chuckles.
For those of you who haven't seen it, stay all the way until you see the Marvel Studios logo at the end. There are like 5 cut scenes (the one with Groot is the best though).