At first the anime start great, then at the middle till the end it becomes a sloppy mess.
Not gonna lie, the plot does sound interesting where anime is invading the real world, the first couple reaction from the MC is funny where she almost falls into the black background and her perspective keeps changing within less than a minute, but after that it's pretty boring to be honest. The fantasy plot that they tried to use is not really that good, should've stuck with the daily school life anime otaku club and deepen the relationship between each character.
About the plot, from my perspective, all this time I am watching Anime so when the plot reveals real world is becoming anime, I was like... so what?, it's anime right from the beginning though so what's the big deal?, thus making me feel detach towards the chaos situation going on, all I see is a good school anime turning into a shitty fantasy anime.