I called gpscentral.ca and spoke to the lady working there (very knowledgable). She fired up the software I was interested in (MS S&D Canada) and found where I lived and read out some of the items in the local area... I was quite impressed... more detail then any other map I had ever seen (though still lacking somewhat for my particular are, but I am kinda in the boonies).

Maybe she would be willing to run the European version for you to give you her impression of that. If you had a paper map then you could compare to what she is telling you on the phone. 1-800-585-933. The guy working there is Ian. Can't quite remember her name though... seems like a Mom and Pop type of GPS store... very friendly.