I'm Nando and I v movies.
When this movie works, it REALLY works. All the stuff in the beginning is a blast. Everything you always wanted from a Flash movie. Everything in the middle, a ton of fun. Creative. Clever. Shot well. And really well acted. Everything at the end, a mixed bag. I loved the character stuff. I am not a fan of the big plot stuff and some other choices. Overall, I think it's a very good movie that suffers from a weak ending.
All that being said, it might be the best DCEU movie. A strong second for me behind The Suicide Squad.