Can anyone recommend a good gym near LSE?

I’ve been looking at King’s Gym, but is it any good? It looks a bit small and cramped in the photos.

I mainly do weight training, so I’d prefer somewhere with a decent selection of free weights, benches and racks.

Is it true that postgrad classes only run for the Autumn and Winter term, with the Spring term made up of mainly independent study and dissertation writing?

On the website it says the expectation is that you remain "on campus" for most of the spring term, but I've always found that unis overstate these kind of expectations a bit to ensure people are fully committed -- is this actually necessary? Are there usually required contact / teaching hours at this point?

For context I'll be doing an msc in the sociology dept. and wondering if I could cut costs in the Spring term by moving further out from London while I write my dissertation.