This company did a roadworthy on a vehicle we recently purchased - they gave the car pass in flying colours.
They didn't pick up that the windscreen wipers were pretty much non-existent or that as a result of that, the windscreen was a mass of scratches - hard enough to see through to drive during the day, let alone at night with lights shining on it. They also didn't pick up that a tail light was out.
If they are going to do botchy roadworthys, I wouldn't trust them with actual repairs.