I hope you don't live to regret it
I am sure you will love it, I still feel myself extremely lucky that I actually get paid to travel like that sometimes, I have said before there's a lot of familiarity breeds contempt on a lot of the aspects of the whole experience. If there's any moment you feel disappointed by something, just take a wander to the other end of the plane and back - that'll put the 'day blanket wasn't on my seat when I boarded' or whatever other made up drama in context. I think a lot of the experience depends on your own demeanour - I am still vaguely embarrassed by all the attention - that many others apparently feel is often sub-par - and quite happy with a (decent) burger and a can of coke, so I don't think I have unreasonable expectations to be dashed at every opportunity