I had to buy this for my TomTom Go Live 550, as I needed a replacement cable., but could only buy these together. The cradle fits the TomTom really well, and the windscreen mount is easy to operate and very secure. It fits first time, every time and never comes loose. More than I can say for the older style mounts for older TomToms.
The cable is sturdy and very long - it reaches from the back of my armrest to the windscreen nicely. It loses one star for the price; I think it is very expensive for what it is, even with an Amazon savings price. But, it is reliable and works well.