I've never seen the movie or any part of the Evangelion franchise, but it's really highly regarded. The End of Evangelion has a 90% on Rotten Tomatoes based on 10 reviews, and is regularly listed as one of the best anime movies of all time. A lot of movie-adjacent people like it. Wes Anderson, for example, considered it one of the 10 best animated movies ever. On Letterboxd it's the 22nd highest rated movie and 6% of people that have watched it call it one of their favourite movies.