Can someone please tell me I am not the only one who is having problems with the reptitemp 500r?

I am using the reptitemp for the UTH on the hot side of my tank, and it fluctuates anywhere from 84 degrees to 100 degrees. It has been acting stupid like that for the past 3 weeks.

On the other side of the tank, I have a UTH plugged into a lamp dimmer, and its constantly staying between 78-83 which is perfect.

How is my $8 lamp dimmer working better than my $22 reptitemp 500r at keeping consistant temps? What a waste of money.... Oh and another thing, the sticky stuff on the reptitemp 500r is so weak that it's impossible to stick to your tank and have it stay on. I had to add extra adhesive tape to it just to get it to hold to the side of my tank a week before falling again.

I can't wait to order my rack from reptilebasics in a week. Then hopefully I won't have any of these annoying problems.

Okay I'm done lol