I know Gestair very well, so you can PM me if you want.
In general here's the picture:
Nice, well maintained aircrafts, beautifull facilities in Tires aerodrome, wich is situated in a high commercial traffic density TMA. So a Very nice picture for the potential students to see.
There's quite a large fleet, and at the moment not a lot of students, so you should get to fly as regularly as you're supposed to.
The aerodrome is in Tires, wich is not expensive to live in, and very close to Cascais wich is a beautifull village. Also about 30m from Lisbon, the capital.
The instructors in general dont have commercial flying experience and are very much underpaid, so forget the ex TAP pilot instructors as posted before.
But mostly are good profesionals!
The working conditions there are not good, so the people aren't happy...you can take your own conclusions from that...
I dont know about the prices, it used to be around 60.000€ with 150hrs, but they have new programs with different prices, so you should ask them about it.
They are a big pilot making machine, it works, some people are happy with it some aren't...