I have a XXL and use the tomtom TMC receiver - the new one, without the extra antenna.
Connects within seconds (in Belgium) and works just fine for traffic jams, road works, temporarily limited speeds etc ....
The information may vary depending on the country you're in.
Of course Live Services is more accurate, especially on secundary roads, but you have to buy a more expensive 'live' version and pay an annual fee.
I think it all depends on how much you are on the road.
Also, not every country has live services !