Yes! Litchi is very reliable. In fact that is the main reason I switched in November because DJI GO kept crashing. I flew in FPV mode for months before I tried the Waypoint mode and I love it! I can go into Mission Hub, create a mission, program waypoints with altitude, speed and camera orientation, then set Points of Interest to train the camera on as the drone flies by . After the mision is complete and saved to Mission Hub, on my desktop computer ,it also forwards it to my iPad that I fly with. I also tried the VR mode a couple of times. I ordered a cheap pair of goggles from Amazon, for about $14.00 I believe and it simply holds the iPhone in front of the goggles to view in dual mode. It is really quite good for the price but I am not that trusting yet. It would help to have someone else be a spotter while wearing the goggles because it can be hard to judge distances to other objects by using only the goggles. I would think that ones that used either USB or HDMI would be much better with more vivid video but I don't know for sure as I have never tried it that way.
I believe that once you try Litchi, you won't go back. Especially after you get familiar with the Waypoints missions. Then there is the FPV via goggles that you should enjoy too. So, what's another 1.2% of your purchase price of the Phantom. I think it will be a great investment of the $14.00 or so that it costs.
Good luck,
Jim
WA5TEF