FWIW I work for a low cost and we have had several pilots join us from QATAR Airways, none of them had anything good to say, and some said that the real horror stories were worse. I.e. Captain charged first class fare for using that cabin for his rest when he should have used business class.
However, high turnover may be leading to a realisation that it pays to treat staff properly as the package is apparently improving.
Best to talk to a currently employed QA pilot regarding conditions rather than someone who got terminated two years ago.