It's neat, but hard to come up with a use case that's not a part of a commercial product just yet. As a unit the 0.4mm pitch connector is absolutely impossible

It's neat, but hard to come up with a use case that's not a part of a commercial product just yet. As a unit the 0.4mm pitch connector is absolutely impossible to solder in a DIY environment, you must buy a breakout board, and suddenly it's not a sub $50 device anymore. All of the use cases I could think of were better served by a device I could actually tinker with, so I hedged on a Minnowboard Max instead.