Eliptical trainers are supposed to give you a much better workout than a treadmill, burning more calories, as well as being easier on your joints(knees). Btw, I had a look around for the same Schwinn you recommended to me Randy, but only found some of the 'lesser' models with no adjustment although I saw a few competitors adjustable models. Here's to hoping winter is short so I can get my bike out!!
AFAIK independent tests (not manufacturers) show no significant difference in the effects of treadmills and normal elliptical use. Going backward on an elliptical targets different muscles but that’s all. They are easier on your body as you point out. However, treadmills are usually easier on your body then running on such things as pavement. OTOH some treadmills do have belts that take some of the weight off your feet to there’s not as much impact stress.
