The one thing I like about them is the mapping of Proof of Work onto a thing of value in the real world. I think it's a pretty strange thing of value to have selected and there are better behaviors out there to encourage.
I know someone they interviewed for a job last year and he said they were cashed up with years of runway but I also know they have a very bad rep in the LoRa equipment vendor space based on conversations although moved on to the LTE CBRS innovation band from what I can tell.