why is everyone so negative about crimson?

i love it lol, i get my money instantly and i get cash back when i get gas. i dont see why so many people are adamantly against it? the only downside for me is that it's through whatever "starion bank" is and therefore if i want to do a cash deposit or other normal bank things it's a hassle but for me crimson has become my go-to bank account and what i use for everyday normal purchases

am i out of the loop or missing something?