We have a fair number of hardcore gyms, especially outside London. In Manchester, lots of independent rusty hardcore gyms Flex n Tone was one in Salford I trained at.
In London for its sheer size there aren't that many, mainly cos its too expensive to run a profitable gym when the property is soo expensive.
Muscle Works I would say is a hardocre gym, men only, lots of machines and free weights , no faffing about no frills, buit overall most gyms are big chains full of nancies.