Anyone have the Pronto TSU 500? If so are you happy with it? Run into any major limitations? I can't justify the price of one of the higher end Prontos right now but I would like to make the family room system easier for the fiancee to use. I also really like the hard button layout on the TSU 500. I don't mind investing the time to set up all the macros and such (I'll do it at work ) just wondering if this remote will be powerful/versatile enough.