I have this device chosen because it to flush the fuel economy, the size passt.Was should one do with a much more expensive device except dishes ?. If I umrechne the price difference in cents per kilowatt hour and it deduce the life that would have the power, rich 3-year warranty extension is not enough. The unit was shipped in sturdy packaging, but only up to the front door, the first floor I had to carry it with neighbors. The connection is very easy, if ever a dishwasher was available. It was an appointment delivery, due to the extended warranty, while still offering the week it was covered, due to the flooding of the Elbe. Sincerely from Saxony