I tried it a couple of years ago,loved it at first,but got a bit bored after a while,I think i paid £28 a month then,another problem was our curves closed from 1.30 til 3pm..I finished work at 1.30 on a dayshift so it wouldve been ideal for me if it had been open..(.instead of opening at 3pm just as the school was getting out

)
I left curves(after 12months,was tied into a contract for 12 instalments)and joined our council Gym,(AcessNL.) much better value,£25 a month(discounted due to NHS work)entitled me to use of all sports centres in North Lanarkshire,including fully equipted Gyms/swimming pools/all keep fit classes,and a slimming class..
I think curves is very good when you havent exercised for a long time,its a good place to start,its a pity they have a joining fee and 12 month contract tho.