Overall - Everything is great, thus far. However, it does sound like a coffee pot brewing when it is running but as for all other aspects, this is a great deal and well worth the savings. I will say that the tech support was phenomenal and very helpful with assisting my tech in getting everything set up and he praised them highly. I have not yet contacted the company regarding the sound it makes while running but will be doing so in the next few days. We have only had these for a week and everything seems to be running great thus far. Thank you for providing a great deal and savings to us.