I needed to replace a 17-year-old unit originally installed when I built the house. It started leaking so I contacted support for advice. They quickly informed me that it needed to be replaced for which they provided a discount code. 

Shipping was fast and installation took less than 30 minutes with their innovative interlocking mechanism. I didn't have to do anything with the sink trap. Just disconnect the dishwasher and drain line. Then hook up the power and done. As easy as it could possibly be.