I liked how easy it was to install and use. I bought 2 this time based on my experience with the first one. However, after a month and a half, one of the remote controls stopped working. I tried 2 new batteries but the light on the remote control does not light up. I love these devices, I don't want to give up the comfort of using them. ALL I want to do is REPLACE THE BAD REMOTE but the Revain site won't let me do that. I wish I could return both pairs including the good one and get a replacement for both. Also, I live in a gated community at Independent Care CC. I don't want to go out to send anything. Things including our groceries are delivered right to our doors. This is very frustrating.