It takes it a long tome to find a valid signal and when it does, the device often loses it while driving. The company has offered a patch to correct this, but every time I try to download it an error message comes up that there's something wrong with my computer. Of course, the problem is with Tom Tom, not the laptop.
As for their claim there is a lifetime update of maps available, well, that's an outright lie. Connecting it to the laptop to download the patch their program hijacked my laptop and tried to make Tom Tom my home screen.
Now, after sitting idle for three months in my car the battery won't charge!
I give this scumbag company two thumbs down, more if I had them!