It was a brilliant film, with a deep message as all DC movies have that came through for people able to interpret things beyond just the special effects.
We finally got a Flash movie after how many years of waiting, and it did not disappoint.
Sure; things could have been slightly better, but I think this movie has suffered from the DC reboot and so meant that people felt like it wasn't worth the ticket price.
This movie effectively caps off the DCEU and Ezra really brought forward Barry's character arc with the Flash.
Some people will just disagree with all that DC has done.
I would have liked the multiverse to have been explored with some connectivity to the new DCU with some event that actually connects thing, but they missed this opportunity.
If the Director has stated that his creative lens over the special effects were to create some kind of time wrap distortion on the visuals, then I'm happy to accept that and give him the benefit of the doubt.
Give the movie a watch, you might just like to see see the DCEU characters get their pseudo send offs.