Unfortunately I’m flying the first sector in the A350-9 without qsuite. But if there would have been qsuite, I’ve read that the joint middle seat is far better than a seat with bassinet. You can have the baby between you sleeping and still have plenty of room for yourself. Also with the seat in the up right position and walls closed, the baby can have some space to crawl/walk a little bit. However in first class I selected the seat with a bassinet, I don’t think we will use it as they are very small. I have requested it but from reading various forums it’s for very small infants, I think the maximum weight is 12kg but it’s the size of the bassinet that is more restricting. And I think we will be better off having him sleep in our seat instead.

i did not have to call any call center or live chat to issue the ticket. I did some calls before booking but depending on who answer they will either tell you infant is allowed or not. However I’ve heard that you might need to call/chat with them to unlock the couple seats. But maybe that was for people flying together on separate PNR.