Just to say that we booked DOH-ZRH (Zurich) last year to fly in May 2019 and were given Q-Suites at the time of booking. Shortly after, they were changed to a 359. Then, two days ago, the Q-Suites were back for both legs. For us, this means two things: (1) Always keep checking under `Manage My Booking' and (2) Do not be too disappointed if you do not get Q-Suites at first and if you do, do not feel too smug either!