The MX-850 is a great remote for most standard-size systems. You would have to be have a LOT of components or be controlling multiple zones in order to find a better model necessary.
We also offer expert programming services at very reasonable prices, so if you are not comfortable with programming it yourself, we would be happy to help.
You are welcome to call me at: (914) 509-5360 if you have any questions or for a free personal consultation.
Thank you,
Damon DG
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http://www.ProRemotes.com - Authorized Dealer & Remote Programming Services