TomTom live traffic, is it any good?

[TurboHatchback]

My Satnav is getting rather old and tired and I really can't stand getting stuck in traffic so I was thinking of buying one of these. I don't have a smartphone but this model apparently has a data connection built into the unit to download traffic and speed camera data.

Basically is it any good? Being able to avoid traffic would be a godsend but if it doesn't work too well then I'd be better off with a cheaper unit. Also is the speed camera location data accurate, up to data and worth paying £19.99 per year for?

[TurboHatchback]

Well I bought it and it's very shiny. After many hours of updating I signed in to the services and had a scroll around the map and it seemed to be aware of various road closures and roadworks which google maps agreed with but being midnight there wasn't a whole lot of traffic around. I haven't actually driven anywhere using it yet so I'll give it a couple of weeks before forming too much of an opinion.