I used hinged doors on the enclosures I made, I don't like only having half the cage open, especially when dealing with the bigger snakes. That was my main reason. I can understand if you don't want the door coming at you, or want to save space. It is all personal preference

addressing some of the reason people say to use sliding, i disagree with most of them. the latches are secure, tho mine won't lock, but i could of got locking ones (no reason to in my house). the hinge isn't going to pop off lol (what kind of hinges are you using?). Cleaning is easier than sliding, clean outside with door up, clean inside with door down, no taking the doors out. I think its also easier to clean out the mating parts of the door vs cleaning out a track with stuff in it. thats my take