I agree it was sad to see them go out of business. My MRX was returned to them in the US (at quite a cost to me) for a number of faults, and again the unit is faulty, so I dont turn mine on any more. I wonder if there were design faults that led to the failing, or just competition (FLARM etc).
Although the MRX didnt give direction information, when it was working, I found it to be a fair priced bit of kit, compared to others out there now. Shame...