Hello FitGirl-ATX.
Yes, I actually own most of the Simply Series (step, circuit, and strong). Circuit is not her best, but Strong and Step are good.
My all time favourite Gin Miller is Reebok AeroStep, which she doesn't even sell, I guess it must be purchased through Reebok.
It's the only Video I did cold the first time and I paid for it big.
Bella Strength is good and it works well with Muscle Max.
And, I agree with you that Simply Interval will work good with Cathe's new series and so will Intense Moves. Major DOMS for Days.
When I see Mandy, I think it's her son's girlfriend. Her husband, Max, is one of the cameraman for Interval.
Your two cents was worth a dollar!!
Jennifer (in MI)