I got out a while back. First purchase at around 63 cents! Didn't do too bad loss-wise after all that as purchased thousands time more at 1.2 cents and sold before the consolidation. Did hold for probably 6 years, and followed them closely. The next quarter was always going to be the one..... Way too much cash burn for product sold - should just leave it to GE to sell in the US too and cut costs +++, but Mike won't do that.
For interest, below is the Quarterly from Jan 2018 (4 years ago).
Below that is today's Quarterly..... not a big difference
To say an erosion of shareholder value is way understated. They have generally raised capital every year of so, and I can't see them going for long before they need to raise again (hence the consolidation). Best bet is for GE to take them over, but Mike did hint at some new tech they might be developing? They must have been doing something with all that R&D spend on what appears to be a pretty stable and mature product - hope so for all current holders. Have to keep my current sentiment as 'sell' though, unless something material develops.