I keep on beta testing the openSPOT2 firmware. The last beta release is v43 and so far I haven’t found any issues.
openSPOT is a hotspot that can run D-STAR, DMR, C4FM, P25 and NXDN digital voice modes. It’s a perfect companion when travelling but on the down side it can’t use several modes at the same time like a Pi-Star can. On the other hand, when travelling I only bring one radio at a time.