"You have a point, they probably would be better off partitioning it in a way that allows for the washing unit or sink to be replaced on it's own but considering that this appliance will likely cost a lot less than a standard dishwasher and is probably intended to appeal specifically to those working in extremely small kitchens, I don't think it'll matter much. Also, considering the size, you probably won't need a replacement so soon. Most dishwashers break down due to users putting dirty cooking items like pans and baking trays in without getting all of the cooked food off. These residuals end up clogging vital portions of the system, making it work harder to finish the same task and often necessitates people turning their device onto a more extreme cycle to boot. After awhile, things don't get clean when put in in a half rinsed state and people deem the dishwasher "broken" and get a new one. Personally I think years of watching detergent commercials where a baking tray with a few mm of baked on food is CGI'd with a quick and perfect clean passing in a second or two is to blame. Does anyone really think a layer of burnt grease is coming off of a pan from a spray of barely pressurized water? You'd be lucky to get that stuff off with a pressure washer. Clean your cooking items in the sink and I bet you'll find your dishwasher will last you a lot longer."

"Based on the size of this, I'd imagine you'd be using a considerably larger amount of water doing so yourself. Plus, you might want to consider the potential for items to be steamed for sanitization purposes. This will be much more difficult with hand washing alone. Pots, pans and other large items are pretty exclusively used for preparing uncooked food which is sanitized during the cooking process so a quick scrub with soap and rinse is all that's needed for such items whereas plates, cups and silverware have direct contact with food that is likely well below the temperatures required to kill any bacteria and is in direct contact with the food/beverage that is going into your mouth. This article also mentions how this product can be used to clean vegetables. A pretty cool addition for people in extremely small apartments, condos or micro homes and a time saver for everyone else who can begin prepping other parts of a meal while their veggies are cleansed."