I wanted to replace my Harmony One by it in order to control more devices (PS3 / WiiU) Having an amp, tv, Intel Nuc (in OpenELEC), PS3, WiiU, IREL Numericable Logitech Squeezebox Touch and I had to replace my six remotes on the coffee table! Nothing to say about the product, as always with Logitech is perfect (I have many Logitech products) by cons I thought it was compatible with IFTTT (web service to automate some tasks), which is not. The compatible version is the Ultimate Harmony Home (this is just the Ultimate Harmony) Except I do not see Harmony Ultimate Home on Amazon ... in fact I do not see too much difference between the two.
I do not know if Logitech will make its older models compatible with IFTTT, it would be a good thing.