I think 3 is a fair number. It wasn't amazing but it also wasn't terrible.
It had good parts and a lot of potential but also a lot of unfinished stuff and some places it could improve... Especially for people not familiar with the five nights at Freddy's universe. It is an enjoyable experience, for someone who just want to watch the movie without thinking about it too much.
But if you care about the plot and the story, it has its fair share of pros & cons...
I did love the fact they put a lot focus on easter eggs, and built a lore that fits the games really well.
But the movie felt like it has 3 main plots at once, and the environment switched quite a lot between creepy and scary...
Bonnie & Freddy also didn't get a lot of attention compared to the others..