Here's the reason I won't fly with them again. Too many reviews like this one.. and we have to get back for work:
Dalaman - Newcastle 2010 : flight was changed 4 times between 3rd August and 10th Sept. Finally, 3 days into our holiday we were voicemailed on our mobile to be informed that our flight home had been cancelled, leaving us to purchase a suitable alternative. This caused enormous expense and distress. When we got to Dalaman Airport for our flight home (with a different airline), we found that our original flight was in fact flying. I would not recommend this airline, and would never use them again. They seem very disorganised and have no customer care.
However - as I stated above - if you can afford to risk the possibility of major changes/cancellation/flying home to a different airport, then you will probably get a cheaper flight - if you book well in advance.