These are flights operated by QR but booked using IB. With these flights, you get lesser Avios and Qpoints (I think), also you don't get the Al Maha meet and assist. Also if tour flight is swapped from Qsuite to other products, you can't change them. I got a similar deal a few weeks back, from Milan to Singapore and return Hong Kong to Stockholm for roughly 1.800EUR. Will be flying next week. Will let you know.