The Go 1000 Live is a very capable device.
Most of our issues with it (and ALL the Go 1000/2000/Via models) was the lack of connectivity to your computer and so an inability to add POIs, colour schemes etc. or to back it up or to buy new maps.
MOST of these have finally been overcome (after FAR too long). You are still not able to back-up your device in the old way, but TT assure us that everything is re-downloadable from them (including your personal map - but I've yet to see this personally)
On the plus side, the unit is pretty slim and looks very good. The screen is extremely bright compared to the old models, although it is much more reflective, which can cause some minor annoyance.
The audio quality is excellent, far better than previous "thin" TomTom models.
The mount is very good although a bit inelegant to my mind as the plug sticks out the bottom quite a lot.
Routing is very fast, especially on long journeys where it is FAR faster than older TomToms.
Minus points:
Like all new TT models, itinerary planning is still missing, although you can use upto 4 waypoints on a standard route now.
There is no Bluetooth remote control or output of audio. BT is only for pairing your mobile phone.
POIs, Map colour schemes, recorded voices, car cursors etc. are all added to the device using the new 'MyTomTom' software for PC and Mac, but there is no "on-line library of these any more, so you can only add stuff you already have, or can get from elsewhere.