Routes can be customised for walkers, bicycles, limited speed, motorway avoidance, speed or shortest distance. You can set alerts up for specific types of POI, so that as you pass a petrol station or hotel an alarm sounds. And one really handy feature lets you add shortcuts to your favourite option to a screen that you can access via a dedicated button on the main screen.
Finally, it goes without saying that the route-planning, ease of use and driving directions are excellent. As with other TomTom products the voice directions are clear, giving advanced warning about the next one or two turnings; and the maps are very good indeed, offering building footprints in big cities and the facility to have the viewpoint automatically zoom out when arriving at a turn so that you can see the road layout more clearly. This is a feature I particularly like about my Mio e510, and combines the advantages of having a 2D map view with the 'realism' of a 3D one.
I drove over 1,000 miles through England and France, in London and in rural areas, and I found the 720's directions almost impossible to fault. One wrong instruction in the time I tested it in London cropped up and a roundabout was replaced with a standard crossroads in Alsace in north east France but that was about it.
The 720 is also quick, updating the map smoothly and not in great big jumps as some other products do. It recalculates routes quickly when you stray off track and allows you to browse the map. TomTom's first-rate Home software makes it a doddle to upgrade the system too, and adding the excellent TomTom Traffic, which uses your phone's Internet connection to receive traffic updates, is absolute child's play and a much more effective method than using TMC traffic information.
Is there anything wrong with this product? If I had to point it out I'd say that the night mode graphics aren't very clear, but then with the automatic brightness adjustment this is not as necessary as it is with other devices. Planning complex itineraries isn't as easy as it could be either - you can't simply keep adding via points to your current route as you can with a Mio sat-nav, for instance. Instead, you have to start off by planning it as an itinerary rather than a standard route, but at least the feature isn't missing.
I must apologise if this review has at some points read a little like a big features list, but in order to give you a good idea of just what the TomTom Go 720 can do, it has to. And I haven't covered every single feature here either. Suffice to say, the TomTom Go 720 is the most capable, feature-packed, easy to use and innovative in-car sat-nav device on the market today. And at under £300, it's not hideously expensive either. If you want the ultimate in satellite navigation, buy one of these. You will not be disappointed.