Logitech Harmony 525 Universal Remote Comments

Oddly the ONLY device it worked on at all for me was the Vivanco scart switch box! Apart from that, a nightmare experience is how I can sum it all up - in particular Panasonic equipment does not work with it, and I have spent what feels like a lifetime of trying before giving up, as even "working" codes for devices have many errors, and I can only assume it is because Logitech are distributing codes of keypressses made by users which are wrongly input, and/or have the wrong model numbers attached.
If anyone is in doubt of the problems users face, have a look at Logitech's own support site for thousands of bemused users!