I hate to say this but as much as I really, really, loved the first Volume, I really did not like Vol. 2.
While there are many good one-liners and jokes the movies was just too slow and it spent far too long developing the relationship between Peter Quill and his father. As much as I hate to admit this I fell asleep halfway through the movie for about 20 minutes.
If you really, really, love the first one all I can say is lower your expectations and you’ll probably be satisfied. Otherwise, wait for this as a rental.