Just a thought on flight training in Greece.
Greece is at the heart of the Euro crisis, and even though things at the moment look calm, last summer the country was on fire with violent demonstrations and strikes. Nothing fundamentally has changed in this situation and there is still a real threat that Greece will be forced out of the eurozone, defaulding on its gigantic foreign debt if it refuses to make reforms and pay its financial obligations.
What will happen when it is kicked out of the Euro zone? The country will descent into chaos , not able to import fuell, with long lasting general strikes that will shut down airports, CAA and ATC. Flightschools will not be able to pay their €€€ financed aircraft, which will be confiscated by the leasing companies, banks will go bust with any funds paid into the accounts of the flightschool, not being recoverable. Riots, violence , possibly even civil war.
As most of the flightschools ask for big parts of the training to be paid up front you can get seriously burned financially, with your career in disarray.
The FTO's might look fine on the surface, but you will be investing in Greece as well. This brings with it incredible risks of loosing all your money.
I strongly suggest that you consider these risks when deciding where to start your flighttraining. There are many places in Europe where you will be able to get the same deal (all EASA approved training) without the potential hazards of a complete economical and social meltdown of the country where you are doing your training.