You can also get an idea of the experience you can expect in the different classes of service on - board and on the ground. (dreamtravelonpoints.com)
You can mix classes and pay corresponding miles instead of being charged for the higher class of service for all segments of the itinerary. (rewardexpert.com)
Add the existing 50 % class of service bonus for business or first class and you'll get 30,000 award miles. (travelcodex.com)