Go for it! I NEVER regretted it.
Lots of doom sayers have never experienced the way the military can screw up your life at the drop of a hat.
I was lucky to get in with a big player and am enjoying every minute of it! As I shuffle off to the bus to take me to the nice big plush hotel in the centre of another capital city I sometimes think of the sh!t holes HM Forces sent me to.
There is NO comparison
(except if you take into account the fantastic low flying that is also being slowly stripped out of the military)
Go for it,
Enjoy