This is my first post on this site. I was banded in June; I have lost 50 pounds so far. I work out quite a bit. I find the weight just doesn't come off for me unless I am at the gym 3 or more times a week. I do one hour classes; I average about 4 days there per week.
For me, classes are ideal because I don't like to work out. The classes are always different and I won't leave or quit in the middle if I get tired. If I'm on a treadmill, I tend to not push myself very hard. At first, I found myself modifying quite a bit of what the instructor was doing, but now I can keep up pretty well.
I have a skinny friend with a heartrate monitor thingy and she burns around 600 calories per class. I figure I'm probably doing close to the same...I'm bigger so I burn more than she does, but I'm also not quite able to do as much of the high impact stuff she does yet...