I downloaded and tried Litchi on Android for the first time yesterday. I did it crash once early on my S5, but it was while the bird was on the ground trying to connect and it fired up again without any issues. The waypoints worked very well, but I had some issues with manual flight. I was flying straight out over a field, then tried to turn. The FPV didn't show it doing anything, unfortunately. Then, 30 seconds later, I saw the turn happen on screen. For whatever reason, even with the lowest stream quality selected, there was over 30 seconds of delay between controlling the bird and the video stream updating, although the telemetry updated more quickly. I contacted their support line, and they mentioned that I might need to manually force stop the DJI Go app as it could also be trying to connect to the Phantom and causing interference. It seems strange that this would be necessary since the DJI Go app is still necessary to maintain for setting up certain parameters (e.g., RTH requirements) and I would have thought that Litchi would be coded to happily coexist, but it seems that there are potential issues. If I get that straightened out, though, I'll be a happy camper.