I bought a TOMTOM GO 920. It must have been a returned product, because the United States Map was not loaded. I returned it and got a new one. However, I was not allowed to upgrade the map software. I was in the middle of moving and retiring from the military. Once settled in my new address, I found I was beyond the 30 days to get a free map upgrade as thier "Latest Map Guarentee", and now the software is 6 quarters overdue, and will cost me near 100 dollors to just get current. read full review »