I have used FPV, Autopilot and Litchi extensively and can vouch all three products work extremely well imo. I must say though that for setting up a quick waypoint mission FPV was absolutely my "goto". Autopilot was great for complex ones but did require a steep learning curve albeit the end results were very gratifying. Alas now I only have a
Mavic 2 Pro which means my only option is Litchi which is ok but had I done my homework before selling my old Mavic and
Phantom 4 Pro I may not have purchased the newer drone. I have contacted both the developers of FPV and Autopilot inquiring if there will ever be an update but never got a response. Very disappointing.