I have an international award flight in exactly two more weeks. But I'll arrive at my starting point (Austin Bergstrom airport) with another airline, barely three hours before departure. Have to pick luggage, check-in and drop bags again, security, etc. The flight I'm catching is ALWAYS on time or departs earlier and I think Premier Access could help at least with check-in if not with security.

Should I do it? Right now or at check-in?