"Has anyone in the UK used this and do they have any comments?"
yep I am. the Euro version works great.
For Maps you have to download the latest versions.
I did this and put them in the IGO\content folder booted from the same SD card and they were copied across.
I'm running th 2009 maps version. Even has the latest road changes in sheffield...
Maps and POIs have to be loaded yourself.
Once I've made the complete euro version with maps I'll upload it. But it will be a large file.
My version of Cmh928 mod and maps is approx 1.2GB this is why the mods come without maps.
I'm an absolute beginner so, If I can do it, I'm sure anyone can.