Our saga is fairly well document, so I won't repeat all of it.
I'd guesstimate that we have about 3000 miles on the second belt, and its working well now. The skipping problem seems to be solved.
Only problem currently is that it will squeek randomly. We'll be going along, everything running smooth and quiet, and then it will start making noise for awhile, then stop. Mor of an annoyance than anything else.
I wouldn't hesistate to buy a new tandem with a Belt Drive. I might think about waiting for the price to drop before retrofitting one at $525.
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You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.