The real test is - will they have a 3 year old TA as a loan car.
Speculating on TwinAir reliability? Perhaps best to paraphrase Maxi's original thoughts on economy & say that time will answer that question - I don't want to frighten the children.
On scond thoughts, this should make for a lively thread so I'll start a new one - those of a nervous disposition might want to look the other way.