Qatar airways is terrible! We will never use them again. We took a Qatar/KL flight in December 2006, as food was about to served the plane hit some bad turbulence and lost height dramatically. An older muslim lady at the rear of the plane (just behind us) started panicking and praying loudly, the stewardess's abandonded their food trolleys and two of them crouched down in the aisles. The whole plane was shaking quite violently and I really thought we were going down, this continued for 30 to 45 minutes and during this time there was no reassurance at all from the flight crew. Eventually we levelled out and the shaking stopped, but later on in the flight we experienced the same thing for 3 or 4 short periods. We eventually landed safely at KL, and I can tell you we were never so glad to have our feet on solid ground again! So 'bye 'bye Qatar Airways, we don't want to go near another of your flights ever again...