Heathrow to Doha leg very busy on both outward and inward flights, but from Doha to Bangkok and return, flights were under half full. The cabin crew were excellent, very friendly, and the toilets were kept clean. The food on all legs was of a very high standard. Its been a long time since I saw biscuits and cheese on an airline food tray. Doha Airport was clean and bright with a good selection of duty free products. I would not hesitate to fly with this airline again.