LHR-ICN. Excellent service from check-in to landing. Seating food and service very good. slight complaint the inflight entertainment was not on-demand but on a loop with no idea when the films were to start. ICN-SYD very good with exception of entertainment as first flight. Return journey a repeat of the outward journey with exception of overnight stay in Seoul. This was part of the ticket and paid for by Asiana. Excellent 5-star hotel although it is a one hour transfer time to Seoul. The management of the transfers was excellent and very smooth. I would thoroughly recommend Asiana Airlines based on my experience of the return trip to Sydney.