The price of this remote led me to believe it was tested sufficiently enough to be reliable for many years to come. Not so. After three months it started giving me messages "testing your Harmony...." And it would lock up during this phase and would be unusable. This became progressively worse. After about 4-5 weeks I could not use it at all. Took me over a month for a technician to service it. It worked fine for about 3 weeks, then the message problem started again. This time it was a shorter progression to when it finally could not be used at all. I am getting it replaced, but would have preferred my money back and never have to deal with it again. I was also told by Best Buy Tech, that this "1st generation" model had a lot of problems. some serial numbers were recalled. I made a big mistake buying this when I did. Jazz