I bought arrx18g for $110 at BB on Friday, and very happy with it. It did take a lot of time learning (both for me and the remote). Some of the codes on the website do not work, e.g. my slingcatcher, so I had to learn all keys. I have set up 13 devices and 10 activities, for devices in living room and bedroom. I actually have a slingbox in livingroom with switch to watch 4 devices in HD (blue ray, gci cable, wd tv plus hd, and dlink dsm-320). My switch has a remote that also I used as a device. Other devices are Mits TV and Denon in living room, and Vizio TV, another WD media player, and Sony receiver in bedroom. It took me almost 3 days to get all the activities working right. Although I can fine tune it over next month, I think I am 90% there.
The software is flunky, but I never lost any work. I use both codes on website, as well as learned code, in my my devices. Unfortunately, trhe learned functions can not be transferred to the web based device for use by other activities. For example I use Denon for audio downstairs, and Sony for audio upstairs. So I like to keep audio keys on lcd screen in activities. Some of thes keys were not in the web (I have Denon 891, the web has Denon 881, so some keys I had to learn). I undertook painful task of adding the denon keys on other devices lcd screen (like cablebox, wd mediaplyaers, etc.). After more than 20 hours on customization, it works very very well. I have basically gotten rid of 10+ remotes that usually lie around my living room and bedroom. My wife is pretty happy with the remote. Not that shes uses it. (She watches only reality shows on cable and never needed more than one cable remote to begin with).
I hope more people bye this remote. At $108 from Best Buy, it is worth the time you spend on it. I have tested all 11 activities several time, and they work right 70%. If not, I can always use ASSIST to fix things.
Hoping to see more people buying this remote. By the way, this is my first advance remote. I never owned Harmony. My last customizable remote was the one that came with yamha RX-795 4 years ago.