The T-Roc generally scores middling results in reliability surveys, although T-Roc owners usually report very high satisfaction despite the occasional niggle.
Most of the car's parts and engines are widely used across the expansive VW-Group network, so availability of replacement parts shouldn't be a challenge.
Spec an extended warranty when you buy your T-Roc for protection against unexpected repair costs. This kicks in once the manufacturer's standard coverage expires and covers you in the event of an electrical or mechanical failure.