The 2015 CT200 was rated "Much better than average" overall by Consumer Reports. The only category (of 17 categories) that did not earn a better-than-average or much better-than-average rating was for Power Equipment, which earned an "average" rating.
The Power Equipment Category includes:
Audio systems, entertainment systems, navigation system, backup camera/sensors, and communication system.
Of course, a lack of maintenance could adversely affect a vehicle's reliability, so try to get ahold of a completed schedule of maintenance work done, and records of any non-maintenance work.