Hmmm. I worked on a couple Schwinn trikes back in my mechanic days. They were a real pain. And they bent easily. The frames were always out of wack. And talk about heavy!
We maintained these trikes free of charge for their handicapped owners. So I'm sure they were ridden down curbs, and basic maintrnance, like keeping tires inflated, was minimum.
I'd really think hard before getting one of these, unless its free!