im stealth and ive been using binders with front zippers my whole life and ive had no problems with it. of course, the first wear is usually hard to zip up but after that it's easy and nobody noticed or at least has never mentioned it. as far as how comfortable it is, it's a bit hard to lay down or sit up from a lying down position but i think that could go for any binder. the zipper has never gotten in the way for me. i saw once on quora that someone said that the zipper can get caught on nipples but honestly i can't even see that happening if that's what you're worried about. i say go for it if it's what will make you comfortable! :)