Having recently flown Doha/Paris and Manchester/Doha economy class I can give a 7 on 1st flight as the steward took too long to serve the food. Coming back to Doha 6/10 as they didn't have enough choices-the chicken dish had finished before we were served and we were only half way down the plane.We were served the only choice available-sausages with mash potatoes and pumpkin which wasn't very nice.
Checking in at Manchester was extremely pleasant I must add-no hassles at all.