I will be honest the base is a pain to put together, once you get the hang of tilting the pieces to fit them together (like the instructions tell you to) you are golden. The heater itself is working well. The timer works. I had one issue with the middle of the piece not heating up but I was not using the pad that came with this. Once I started using this pad everything worked great.I will warn that there was a pretty bad smell when I first pulled the pad out of the box, but the smell went away and the pad works great.