I would say a Jazz is more refined than a Toyota and more versatile, Toyota's tend to be cramped in the back, the rear doors don't open very wide, the body panels are thin and "tinny", Hondas drivetrain is more refined partly due to more soundproofing, I had a Yaris Cross which was noisy, both wind/ road noise and a very gruff sounding engine, a continuous drone into the cabin. The Toyota hybrid drivetrain is very reliable and they have a good warranty period, your mate will have to drive a Corolla to come to a decision