Just purchase an Asia ConnectFirst fare! You get automatically booked into first class. The only catch is that seats must be available and you must make a connection.

First class seating is not like the current sleeperseat-type in other airlines. I'd say the seats recline to around 150-160 degrees. There's about 60 inches of legroom on the B744s.

IMHO, I'd pay C/J fare to fly on NWA's first class, but never full F fare. If I ever fly on a full F fare, I'd want to fly on SQ.