PPRuNe Pop:
Respect to you as our moderator, and indeed it should be a good service for the money. I think what we are commenting on once again is the Ryanair-style usage of the metropolitan area name to try and conceal an off-centre location for those who don't know. If they would just say the service was to Hendon Central (Northern Line) we would think it was great. And lets have one to Redbridge (Central Line) from Stansted as well.
At St Petersburg Pulkovo airport there is a similar style minibus service from the airport to Moskovskaya metro station, the nearest one, which is also far out in the suburbs. There is no pretence the minibus service takes you into St Petersburg.
By the way, scheduled Underground time in the morning Hendon Central to Charing Cross is 28 minutes, plus the getting to and from the platforms.
egnxema:
You would indeed be unwise to go all the way in to St Pancras and come back out again, as there is a stoppng train as well from Luton Airport Parkway station on exactly the line you describe that stops at all those intermediate points - Mill Hill, Hendon, Cricklewood, every 15 minutes.