Fast delivery and easy installation. The box contained all the water lines and couplings for a straight forward installation once my old toilet seat was removed. I like the one-page, hangable "Users Guide" which will be handy for my guests not already familiar with the features of a BioBidet. My only negative is that the 655 round bidet seat doesn't exactly fit my round bowl American Standard toilet. I would have liked the seat to be about .75 inches closer to the tank, but it doesn't mount that close - therefore the very front of the bowl protrudes into the seat area. It's a small concern on an otherwise excellent product.