I too was a bit hesitant about buying a LR, but it was the best purchase ever! The 90 day money back guarantee was what convinced me to buy it and try it. I had tried other automatic litter boxes with little success, but this one not only works very well, you can tell that it was well thought out and engineered. It’s quiet! Later on, we also purchased a cabinet for it which makes for a nice table and hides the LR. I also recommend buying the LR2 Fence, which greatly reduced the amount of cat litter the cats carried out on their paws. Wait with installing it until the cats are used to using the LR. One of our cats is very timid, but he got it. Great product Litter Robot! 6 out of 5 stars!