The movie feels like they added a plot after coming up with the special effects. It checks the boxes of the expected plot points, but the acting and character development are non-existent. The movie doesn't give you a reason to care about the main characters, so you are left with just enjoying the special effects or taking a nap.

Emma Stone looks nothing like Mary Jane from the comics, and doesn't have a believable character arc. She goes from not liking to loving Peter Parker for no apparent reason. I guess it had to happen for the plot to move forward, but it does not happen in a convincing manner.

My advice is to watch the original movies or , even better, read the comics.