Hi Viper79,
From what I know bases are SAW, AYT and ADB. Guaranteed 7 days off, but you can expect some more, mostly 1 or 2 days in a row, so not the best commuting environment.
They fly around 900 hours a year. The turkish authorities allow 1000 max. But XQ wants to introduce EU-Ops which is going to relax duty plans, so most likely more days off.
Hope this little bit of information helps to begin with...