Litchi is good for specific missions. Otherwise, it makes flying my P4 boring. If I wanted to use Litchi all the time, I may as well go to the flying field with a lawn chair and just watch the other aircraft fly around while I do practically nothing.
Having said that, Litchi is very good for those certain situations. Most of my operations are Go app-based, with an occasional Litchi waypoint mission.
So, Waypoint is only one of Litchi's flight modes. You can fly FPV, just like DJI GO, but if you want to fly REAL FPV, pick up a pair of VR BOX goggles for $15. Open up Litchi, select FPV, click VR mode and slip your iPhone into the goggles. THAT won't leave you bored. Otherwise, with Litchi you can fly any of the other modes that DJI GO is capable of, with at least a few cool improvements.
If you're saying that Waypoint mode is boring, then yeah. Waypoint mode is about the best possible video, not exciting R/C flying. In that case, photography is the hobby, not R/C flying. But many of us bought these drones as photography tools, not things to fly for the sake of flying. Even if flying is the reason you have a quadcopter, let's face it, flying an automated Phantom 4 with its sophisticated electronics is
not exciting R/C nor is it particularly challenging. If you're not into the photography at all, get a racing quad. THAT is about exciting flying. And it will cost you quite a bit less than a Phantom.
As to Litchi vs DJI GO, I think GO is very well implemented software, but its feature set is kind of lame compared to at least a couple of the known, reliable, flight control apps that are available for not very much money. IMHO, one of the smartest things that DJI has done is open up that software and supplying an SDK.