I did a similar sort of programme but it involved 12 weeks of healthy living classes along with it. You got a 12 week pass to the local council sports facilities. Other than an induction with the gym instructor on how to work the machines, you were pretty much left to your own devices.
About 4 weeks in I got a giant sized depression hit and gave up. Such a waste. No-one ever bothered to chase me up either to see if I was ok.