Does anyone have any experience with the TomTom GO920?

 

I currently use the Garmin Nuvi 860 but was thinking about buying the TomTom GO920 because it is on sale at Costco.com for $399.00 and includes maps of North America and Europe. Since the full CD of Europe from Garmin was about $300.00, I figured I would pay the extra $100.00 and get Europe maps and a backup GPSR with additional features, but I know very little about TomTom and the GO920. Anyone have any thoughts on the TomTom 920?