Did wet test either of the two? I would think the Marquis would have full manfacture warrany? both are good tubs, pick the one you like. There is a 1 year warranty on replacement part from hotspring unless that change.
It's a toss up. I think the hot spring is a better tub but It's used. And in repsonse to the post before. A new hot springs would have a 5 year parts warranty and has as long as I can remember. But this is used so that's irrelevant. so you might have a better warranty with the Marquis but I still think the hot springs will outlast it.