If you are considering flight training in Greece, I strongly recommend to go and visit the location first, before deciding.
There are many so called ATO`s in Greece, but only one or two are reliable and professional.
In Megara for instance there are 4 ATO`s, of which only one, I would spend my money on, that is Global Aviation.
If you are considering Ionian Aviation in Megara, go and visit this so called ATO, and you will soon realize what I am talking about.
Send me a PM if you need more professional support.