I watched it last night and actually enjoyed it a lot more than I thought I would. I think anyone going in expecting a full blown Spidey story will be disappointed as this is really more of a Peter movie and while it wasn't perfect I think a lot of it worked well. The characterization and casting was great. This is probably the first time I've seen a live action MJ and actually felt like I was watching that character. The highlight for me was definitely the costuming, both superhero and civilian.
I think newer fans might have a hard time with this harsher characterization of Peter but in the context of being a love letter to the 70s era and what Peter was going through at this time I actually thought they did a good job showing a Peter at one of his lowest points.
I'd give it a good 7.5/10 as a solid love letter to this era and the coffee bean gang. Definitely not movie quality but I've watched CW superhero shows with a bigger budget with much worse writing and less care for the characters so in that context I liked it.