I think QA is reasonable! I have travelled via QA thrice and found it good.

Jet- mostly new

Doha Transit- Its good; not big neither complicated. Plus, possibly Nepali speaking checking your passport and tickets..this way it is hassle free

Food: It is ok

(If your belly is demanding, don’t hesitate for extra- air hostesses will get you all you want! Only thing you would do is, as and when you board the jet, you will give impression that you came from US/London but not from Doha...so talk to one of them....some accented english plus scented outfit would be proofs of yourself being in WEST; mind you air hostesses are very fond of english tongue and those living somewhere in europe and america . This way you can get extra meal)

Air hostesses: They look ok; anyway what else you want from them other than a good smile. (i did not find any steward..so the reference i gave is about air hostesses only..in any case no offence to anyone regardless the gender)

Wish you safe travel!