Without kicking off a "my Dads bigger than your Dad" p1ssing contest, may I suggest you check out Pure Gym (other brands are available).
£15 a month including a nominated "second gym" in another town.
365/24/7 access (without signing out keys
)
Awesome equipment selection (with a nod to my opening comment - I seriously doubt there are many service gyms that come close)
Massive selection of free classes, if that is your bag.
TBH, being forced to join a commercial gym, was actually a good thing IMO. If I was still in, I'd join one anyway and I know that both of my last two gyms (DW Fitness and aforementioned Pure Gym) are well used by a lot of local service people, so I'm not alone in my view.
Just seeking to add a little balance here.