Hey Dana,
I second all of the positive opinions on the Harmony's. I have the One and I also setup the RF model for my in-laws HT. Without it they would not be able to watch a movie by themselves
Tips and tricks? First off make sure you make use of discrete power on & off commands wherever possible. Some device remotes only have a power toggle on the original remote even though the device may accept discrete codes. This will greatly help keep everything in sync. Just check the commands available for your components in the Harmony database.
The other trick I use is to program certain functions onto the hard buttons rather than use the screen. For example, when in 'watch movie' activity, the channel up/down and return buttons are not really used or needed. So I use the 'return' button to go cycle into my channel level control menu and then channel up/down can bump or down each level. That way I easily adjust my center channel as needed without having to flip pages on the touchscreen.
Hope that helps.
Cheers,
