This was pretty much exactly what I thought it would be, though not nearly as bad as people seemed to make it out to be. That is, it was the same kind of funny as the original (and with more or less the same plot). The jokes flew thick, and some landed and some didn't, but none were left hanging long enough to matter either way. No dead air, as it were.
There were some missed opportunities, I think. Jokes that never went anywhere. Like the dog thing, or the fact that Kevin (Chris Hemsworth) had no lenses in his glasses. Shouldn't he have been stumbling around slightly blind or something? I also found his suddenly wanting to join the Ghostbusters somewhat odd since there had been zero setup for that. He'd shown exactly no interest in them or what they did, then he wanted to join the team?
I also felt the big, final fight was a tad too long, but that's become common in today's action films.
A lot of cameos, of course.
In all, not terrible. It entertained me in exactly the way I expected, which is pretty much the most one can ask for from a movie. (It's only bonus if a movie goes above and beyond what is expected.) If you like the kind of humor in things like 21 Jump Street, this one is similar. I think it suffered from the weight of its source material and probably was never going to get a fair shake on its own merit, which is a shame.