Could you explain your comment? I'm guessing that you are pointing out that Blossom has origins in/has funding from MIT, and is doing hardware development aimed at producing an expensive product targeted at a very limited market? If so, I'm not sure how to distinguish their approach from Clover.

Except Blossom has validated their market by generating a huge waiting list of potential customers.

[edit: And they've already proven their technology. And, it's easy for investors to vet their product, because a lot of investors are coffee snobs.]

"Coffee, Optimized"

This is such a perfect example.