Not really fond of putting a long unskippable cutscene in front of your game, even if you've already seen it. I don't really care about the backstory, at least let me try the game a little first.
The right stick shooting feels very clunky. Bullets would come out when I wasn't touching the right stick, or they'd come out in an incorrect direction. I just kept missing all enemies. Also, the character is very slow, which makes the whole game feel slow as well.
I haven't played Vampire Survivors though, so maybe it's on purpose and improves later on.