the longer you play, you will notice the many many bad things.
-The balancing (BR (Battle rating) system is strongly prefering players who buy premium vehicles (some of them 70€ for a single one+ a little extra)
-The devolopers aren't listening to the playerbase at all
-The advertising shows modern jets and tanks. Well if you're a new player who got here because of these ads, prepare to play min. as long as I did already or longer to get a glimpse of these vehicles if you dont want to pay the prices mentioned above multiple times (you would be somewhat hated by the players who got there by playing anyway)
-And the economy well I don't think I could really do justice in this comment. read other reviews and go to r/warthunderplayerunion or something to find out what I mean.
I will warn you tho - you won't notice it at the beginning.