Any thoughts on the 550 vs the "One"?
Haven't played with the one, but I am very familiar with the layout of the 550, and a couple of other models.
Pretty much all Harmony remotes do the same damn thing. Ok, one or two might have a touch screen + rf.
The problem with 520/550 etc, are the tiny # buttons, and the "clicky" volume and channel. I use a cheap 520 (you may still find em, maybe $60-80??) that I use only for commanding the system. (I manually turn on/off system. Onkyo does not have 12v trigger, first of all. I turn on BDP first, as that helps avoid HDMI handshake issues. Then to receiver, then to amp, to protect speakers). I have a hi-end PJ, so I would hate to have to turn on/off accidentally; want to completely avoid unnecessary strikes).
Anyways, it works totally fine. I don't use any # buttons (no more tv). In one of the seat's cupholders, someone had a glass that was flush with the arm. I momentarily dropped it into the drink! Didn't work at first, but the next day after drying it did. I don't deserve a hi-end remote...
Anyways, the Pronto's are supposed to be excellent. The Monsters are less money, but also are said to be very excellent. I know of two who use them. One says the CS was top notch (oh I understand the hatred that is pervasive here) and the other is a CI guy who says they work great, and he himself hates Monster...)
I'm fine with my cheap-o. If you do get a Harmony, its nearly inevitable that the system will go out of sync. You will have to teach family how to get the system back in sync with itself, as well as with the remote. You'll want to get the "delay" settings just right as well when programming, as I found this to help sync issues before when the remote was used to turn on/off.
The single biggest benefit of a Harmony remote for me is simply that its backlit. Though I've come to memorize the commands by feel now, perhaps even that is not an issue anymore.
-jostenmeat