I also have a Stratux, which is usually rock solid. I purchased the black dongle with the antenna for my HDX system as a backup, but have found the Certified Dynon HDX to be an unreliable source of ADSB and GPS to my Ipad with Forflight (or GP) over wifi. Often the traffic and GPS just randomly disconnect mid flight. 2 days ago I was flying near the SEATAC Bravo airspace and the GPS stopped updating to the ipad, even though I could see traffic. People say that you should put an extender on the dongle and move it closer to the ipad, but my ipad is panel mounted and only 2 feet away from the HDX at most.
All that to say, you milage may vary.