The system in our TV room consists of a Flat screen TV, DVD player, Satellite receiver, VCR, surround sound amplifier (for DVD and satellite) and Humax PVR (which is used as the freeview receiver). For some reason my wife doesn't seem to think that she can operate any of these items and has been giving me severe ear ache on the subject "as she'd like to be able to watch TV without needing me to turn it on for her". I therefore ordered the 555 to make life easier for both of us. It arrived yesterday and I was amazed at how easy it was to set up to switch on any of the combinations that I use. What was even more impressive was that if for example I am watching Freeview via the PVR and then want to switch to watching a DVD all the correct devices are switched on or off and the TV moves to the correct input at the touch of one button. As I bought this as a birthday present SWMBO (She who must be obeyed) has not yet used it but I am confident that she will have no problem understanding how to use it. EDIT - The Birthday has now happened - the remote control has been handed over and it has been given approval as "very easy to understand and use" (Phew).
The only tip that I would pass on is that the remote remembers the last combination that you asked it to set up and uses that memory to calculate moving through the settings to the ones next required. If you then use any original remote controls to change anything that you are using the 555 to control the next time that you use the 555 it may not give you the correct result. This is easily dealt with via a help button and once you have re-synchronised the remote with what you want the system to do it then carries on correctly.
Recommendation - once you've got it programmed lock the old remotes in a cupboard to prevent this problem