Wouldn't trade it for the world.
Been a customer since the very beginning. Their customer service is AMAZING and the warranty is good. We did have one break a few months after the warranty ran out, but it was the older model and they have since fixed the issue. We had to pay for a new one, but we gladly did. This thing is the best cat litter box ever!
I have 3 cats and one box. Everyone who has come into my home was surprised to see that I owned cats. Here's my in-depth review if you're interested: http://writebackwards.we3dements.com/wordpress/2012/04/16/the-best-litterbox-ever/