I hesitated on the choice of model, in fact, I do not know if I should take a XL or not and if I had to take the TMC or no option. I opted for the version small model and I do not regret, indeed, its format is happening everywhere and can fit into your trouser pocket! For the TMC option, it is really helpful and saves time when large caps! The GPS informs you as soon as there was a slowdown on your course and offers a deviation and the number of minutes saved. I was able to save valuable time! Do not hesitate, buy it, especially at that price, the cheapest on Amazon!