Each to their own.
Personally any F flight where you spend most of it asleep is a waste of time to me. I want to experience the trappings of the cabin especially if it's not something I get to see that often.
Others want the sleep so they're refreshed for work etc. in the morning.
It should be a long enough flight though to enjoy a bit of everything and at the end of the day, it's an experience whether good or not quite up to expectations.