krzywica, I would have spent the extra $33 or whatever to have the blaster, emitters, and remote.
Firstly, the 550 doesn't do RF. Secondly, URC programming is soooooooo much easier and convenient than Harmony.
To recommend a 550 over the RF20 is akin to any of the following:
recommending Monster over Monoprice
recommending lcd over plasma
recommending Bose over PSB
Yes, IMO, that bad. I own the 520. Here are the 550 and 520, they are 99.9% the same.
This is what I PMd to bandphan just two days ago, on Saturday, as I decided to bust out the retired 520 (which I knew the play button didn't work so well, but wasn't sure if it was completely broke, which it is, and furthermore I discovered the volume buttons are completely broke too, after a little more than a year's use).
sincerely,
jostenmeat
p.s. what I meant by "plug/unplug" is going thru the programming thing with the computer, because whatever didn't work or catch. URC programming is less than 5 minutes.