I found Virgin really busy. And it seemed to be getting busier, till I sacked it off. Couldn't be bothered waiting for machines so all I do now is sit-ups and pess-ups at home, and go out twice a week on my bike. I had the bike before so it's for nowt.
If I get sick of the weather in winter, I might try the one up at Graves sports centre. £28 a month I think it is.