If you are from the EU, go for it. It isn't bad value for money.
If you are (like me) someone from a place where you cannot normally get a work permit in UK, then forget it. There is no fun paying five times your class mate from EU does for the MSc and then go back home to jobs which fetches you one tenth of the average starting salary in Europe. You dont need Adam Smith to teach you that the economics wont work out in this case!
That said, I enjoyed the course every moment, made some great friends (as someone else said in a previous post elsewhere - it is like a mini united nations ) and the quality of education is top class. The emphasis is not just on airlines, but also on other areas like airports etc, the quality of faculty is excellent and the facilities top notch.
Now if only I win a lottery to pay off my loans!