This was a Fun movie, and a very funny one, too. Until the end, I wasn't sure if it was a good one. Hell, it is good. The first was well-made and profoundly clever in its use of nostalgia as part of its storytelling soul rather than just appearances, but the sequel has a more perfect magic: emotional honesty.
It's about a team of famous yet bickering mercenaries and their unseemly associates, all outmaneuvering enemies and gravitating toward epic destinies that turn out to be mirages obscuring the smaller truths of family. I suspect this will make older viewers like it more, but younger ones like it less, because they don't sleep with the sort of well-settled emotional tangles that the movie vicariously unravels.
I don't really feel like more should be said, frankly, than that. It's a light show, lacking any suggestion of physical threat or danger, yet it wields its human weaponry so well.