At least you've got the building + pivoting down!

Looking back, how do you think you did on the marketing/sales front? I don't mean the results of the efforts but I mean the input front.

Curious if those pivots were caused because the problem addressed wasn't painful enough, the solutions didn't address that pain well enough, or if it was simply distribution.

If the former two, I imagine it's only a matter of time until you strike gold. But if it's the final third, there's a chance one of the 17 could have worked out well.