I recently bought a T-Roc and ACC is pretty awesome. The issue I have is on the motorway, when changing lanes, it has a tendency to lose speed and with it being a 1 litre, it takes a while to build up the speed again.

It also has front sensors which has alerted and braked for me a couple of times when someone has almost stopped dead at 60MPH (even with stopping distance, it was a quick stop).