So I just bought a HD TV and currently have the R15 (not the greatest unit ever but problem free for a few months now) I was considering upgrading to HD programing but reading the horror stories about the HR20 have backed me off it a little bit. Since the brand new update hit recently, is the HR20 more reliable or stable? I just dont want to get this unit and have to replace it, or reset it constantly. Also, is the UI basically the same as the R15?