Shockingly enough, LA, I'm really not sore at all! So, it sure begs the question of whether I really got anything out of it.

The back spazzes are little more intense and frequent, but who knows?
I'm not in the market for one of those, myself, my big thing is about how much I'd be able to use a $3k machine the size of a tank. The thing is huge, it weighs 350 lbs. and it's about 7 ft. tall. Besides, that's a lot of money and I can think of dozens of ways to spend it elsewhere, like on a tank of gas.
I'm not giving up on the rower because it works the whole body, the elliptical is way fun, but it's lower body only.
I will devise a climbing system to get up from a rower, probably involving my rollator. That's how I get up when I wipe out. There has to be a way!