I have been using the 1 mile tape and I really like it, it is very easy to do and it is a quick workout.
I bought mine from Walmart, and I am going to get the 2 mile tape as soon as I can.
I have done the 1 mile everyday for the past week, it is just a matter of getting into the habit of doing each day. I have heard nothing but good things about them.
Suzanne