I'm giving it 3stars because the acting and the filming was good. It could have been great if it just made sense and was more realistic.
SPOILER: How can this be your bestfriend and NO ONE knows that she's dead. I mean even if they couldn't find the body, her parents would have had missing posters everywhere, the teachers would mention that GIA is missing and not come to school, etc... Even when Erika through the party at Gia's house, like how on earth lol, made zero sense to me when the plot twist came.
Overall, it was fun to watch.