I don't know so much about GAir's Portugal base, but I read in some Spanish forums that the Spanish Gair, now called European Flyers and located in Madrid, was very bad. Moreover, I contacted with a student and he told me that in the IFR endorsement the instructor has difficulties to manage an instrumental arrival...
When a I was searching a flight school I saw the GAir facilities in Madrid (surely the best there), with a A320 full motion sim etc... but the C172's analogic fleet seems old.
Anyway, if you are able to understand Spanish I hardly recommended you to enter to forums like foroaviones or extracrew and you can get a lot of info.
Good luck!