Pretty good

Rating: 6/10 (24 June 2015)

So here we go, my review of GOTG, broken down into parts:
Plot: 6/10, while having some holes (plotholes), it was OK. Some of the problems with the plot that I can name are things like why was Peter abducted? What's with the awkward relationship between Peter and Yondu? Nonetheless, these holes didn't subtract too much from the film. BTW, while seeming to be separated from the rest of the Marvel films (at least from the perspective of those who've never picked up a comic book, like myself), this movie does deal with an Infinity Stone (Power Stone) and explains who Thanos is, which will come in handy when Avengers 3 comes out (Infinity Wars Pt. 1 & 2 will most likely have Thanos as the villain, based on the mid-credit scene of Avengers: AoU). As far as predictability, this film is not predictable.
Characters: 5/10, Peter Quill (Chris Pratt) is definitely a different type of superhero, while I personally dislike the character. Rocket Raccoon is my favorite. One problem with the characters is that too many have, uh, temper problems, and tend to try to kill anyone who insults them (I'm talking about Gamora, Rocket, and Drax). Peter doesn't get mad when insulted, but probably because he knows that the insults are true. Groot is the only character who seemingly has no attitude issues, but Groot can't talk (other than saying I/We are Groot).
Special Effects: 9/10, the SfX were excellent and was what I was expecting from Marvel.
Conclusion: GOTG, while certainly different, isn't necessarily different in a good way. Nonetheless, it's a good watch, and deserves the title of Marvel film.