As a fan. I am disappointed. Could've been a very scary movie telling the story well and using it's scary material to it's advantage.
A FEW MINOR SPOILERS AHEAD.
Five Night's At Freddy's has about 9 years of history with tons and tons of scary moments, perfect lore and the producers and writers decide to turn the movie into a family/comedy right in the middle of the movie. It is very disappointing as someone who grew up with this series seeing a movie with so much potential and so much material to really make you scream and be genuinely scared to then see bonnie, foxy, freddy and chica building a fort for a little girl. It is very disappointing when you have seen how scary this videogame series can be and how great the lore is for then the writers to create something that at best is interesting and at worst one of the worst horror films of the year.
The writers had 9 years of material to really make this movie something creepy and really encapsulate the unique horror that Five Night's at Freddy's holds. They basically had the movie right in front of them and all they had to do was piece it together into a perfect movie telling a bit of a different story from the real game lore but still being very enjoyable and very very scary.
But what are some good things about it? Matpat, Coryxkenshin, the music at the end of the movie. The scene where they absolutely massacre max and all of the other ones but I'm sad that that was really only the scary part. That's about all I enjoyed.
There was just so much potential for this movie, they could've added so much more and so many more effects to make this a really scary movie and they decide to do something completely different.
In conclusion, from a fan's standpoint I am very biased on everything having to do with this series but even being a very long time fan since 2014 following this series all the way to this movie, even then I still did not like this movie and even people who have never ever experienced FNAF did not like it, and I know that because I watched this movie with 3 of those people and after the movie ended the first thing one of them said to me was, "How much of the movie did you see before you fell asleep".
2/5, wasted potential.