I have done a A340-500/600 difference course with Lufthansa Technical Training at FRA and it was ... perfect !
I have even got a discount for the hotel who was just at the front of the training center ... no need of car !
s02193980 , send me a PM and i will give you the right contact over there.
PS : i always prefer an airline because they have A/C for the practical ... sorry MROs...
Salut.