I've been using solely UTH's for 15+ years for snakes and never had any issues.
However, I'm about to order some PVC cages now that I have my own place and don't have to answer to my parents about my bizarre spending choices and use of space, lol. And when I do, I'm gonna have RHP's installed as well as slots for UTH. Just so I have options. I'd rather have something and not use it than not have it and need it.