Hello Artic Flyer,
I am Instructor and Commercial Pilot that did my license conversion to EASA at Global very recently. I have seen many flight schools and worked at some myself and I can say that according to my experience Global is a good place to be. The staff is friendly and is always ready to help you with your training and other matters that are unrelated like housing or dealing with the authorities like the HCAA or searching for an AME for your Medical.
The planes are well maintained as Piper has repair center at the same airport.
I was really impressed by the profesional behaviour of the instructors and also their very high level of knowledge. Many of them have a long career in the Greek AirForce or at the airlines. For example.
All the instructos I had when I was converting my IR where actually Captains or First Officers at Greek Airlines, teaching you from the very beginning high quality IFR knowledge. As an FI myself I was highly impressed.
At the same time Global is a bit like a family, people take care of each other, and you can see that they truly enjoy what they are doing. They welcomed me with open arms, and even though I was only going to be with them for 2 months I made many good friends and always felt comfortable and listened at the school.
Of course like any other Flight School there are some downsides. Global Aviation operates out of Megara, which is a military airport. This can lead to frequent changes in the schedule due to military manuevers. Be prepared for delays or cancellations as these activities are announced I believe in the early morning of each day. I must say that in my case, even though I had to cancel a few times, Global managed to finish my training 2 weeks before their program advertised.
The school is building its own facility at another airport in order to bypass this issue. I saw the field myself, but cant tell you when it will be operational.
The weather in Greece is spectacular but winds can be quite high, which will help you really learn those stick and rudders skills, and may lead to some cancellations.But if you put the time, you study the syllabus and prepare for each lesson, I am sure that you will be able to get the training done in good time. Living in Greece is also quite cheap compared to other countries so I would take that into account too. The school also has some cadet programs with AGEAN or EPST that trains where Transavia Cadets due their training,so plenty of International Students. I never felt treated differently or that they were given any preference. Again I only did a short conversion so I cant speak for other people.
I honestly had a great experience at Global, there is no perfect flight school, but they do a good job and are by far one of the best schools I have trained or worked for.
It is definetly worth a visit, which is a must if you are seriously considering it.
If you have any further questions please fell free to send me a message and we can tallk a bit more.
Cheers!