I to have used Tom-Tom and was very impressed with it, until I purchased a Navman iCN630 this as proved to be far better than Tom-Tom but it was also far more expensive. I have just returned from a 2300 mile European trip, over 7 days this device performed faultlessly over motorways, unmade roads and varying extreme temperatures. On the one occasion I required assistance from Navman UK with regards to a problem with V3 software their help far exceeded my expectations! Go for the new iCN 635…….