Here is what I love about them: the 20ish minute length, a different workout every day for a month, varying body parts to work something different on consecutive days, and floor work for lower body.
Is there anything else like this? I also love the outdoor scenery.
I love doing an episode after a 3 mile walk...feels like a perfect workout right now.
Side note, I have unplugged 2000 and would love 1900 series. PM me if you have them.