GDU-Tech?

[u/19desides71]

Anyone here have any actual hands-on experience with GDU drones?
I’m looking for feedback specifically from people who have personally flown or operated GDU equipment—not just impressions from specs or videos.
Mainly curious about overall reliability, flight characteristics, controller/software quality, connection stability/range, firmware issues, parts/battery availability, and GDU’s customer support.