Thanks for a very comprehensive and detailed review! I have flown a few r/t from Europe to South-East Asia with them during the past year in J and my thoughts pretty much correspond those of yours.
It has to be noted that they clearly have done some costcutting lately, e.g. the amenity kit used to be much better (including Armani EdT etc., toothbrush was there also).
I normally fly from BRU and of course it helps with the connection times that they have two daily flights to DOH. I have never had to wait for the connecting flight for more than 2,5 hours.
Looking forward to my flight CGK-DOH-EU tonight - QR’s offering is really to my liking. If only one wouldn’t have to be transferring in DOH in the middle of the night so often!