After a few weeks of using it, it seems that my ball is enjoying it because he lays right on top of it! It doesn't vibrate! I put it on my washer and it didn't make any noises! It was designed for use by reptiles. I took the towel of the screen top and the humidity is a constant 58%. He does have a large water bowl as well. It looks cool! He spends most of the time in his hide. He eats great too! I like my tank looking nice but my priority is his happiness! If he looked stressed or did not eat then I would take it out! He is my only baby so I spend alot of money and time on him!