I go to Zest. I joined up some months back and went for a week and then forgot about it. Last week, I started going again.
I went 4 days and walked on the treadmill for half an hour - managing 3.5km. I then went and did some machine called the pec deck. Only on the lowest weight (I couldn't go any higher) and only 20 reps. I then did sit-ups using an ab roller. 50 on the back and 50 on each side and 50 reverse (pulling legs to chest and getting butt off the floor).
All up, it takes me about 45-60 mins. I paid all up for the year so not sure what the pricing is. From memory, when I was paying fortnightly, it was about $30/fortnight.
I enjoy going as it makes me feel better about myself. I'm chuffed that today's workout seemed much easier than usual as that means it's time to step it up a notch already.