Rental, it was decidedly mediocre. The film was riddled with plot holes and it felt like two films smushed together, worst of all is it traveled in the same cliches as the previous trilogy questioning what was the bloody point in the reboot. Also the entire film is given away in the trailer so you have to sit through 2+ hours to see everything you saw leading up to the ending.
You are better off with Captain America or Godzilla those were great movies.
I agree with this. Was not impressed with SM2 at all. Captain America was pretty good, I haven't seen Godzilla but I want to.