The product seems to be ok so far(I just installed it this week) but buyers beware(Caveat Emptor!). This is a horrible company to deal with. If you are planning to install it by yourself, Samsung does not like it or support it. While installing the OTR by myself, I came across a very minor technical issue. They gave me the worst response anyone could ever imagine when dealing with a company. I was on the phone with them for many hours. Some of their representatives are outright rude and speak with a threatening tone. A few could not even understand what I was asking about, they requested me to speak very slowly(BTW, I was not speaking at a fast pace at all). Their supervisors are not professional either, they hung up on me while I was speaking. There is no accountability at all in this organization. They do not respect your time or your money. Even after spending $550.00 for a microwave, they disrespected and dismissed me for not hiring their service for installation! I've never dealt with such a horrible company and employees in my entire life. They behave like they don't care at all. After a few days of back and forth with this horrible and stupid company, I ripped open my vent and figured out the issue by myself. It was a simple question and a simple answer but they refused to help me when I badly needed their help. BTW, Costco tried its best to help me. When they were hanging up on me for no reason, a Costco Concierge employee had to 3-way conference the call to stop them from doing so. If you are spending your hard-earned money on this company, good luck! Don't say that you've not been warned. Again "BUYERS BEWARE!" A huge red flag!