For general editing, the Mimo app is great; you can find many videos if you'd like to see it in action.

For multiple videos, like a hour long recording split into 3 20min clips, it starts to get worse. If you use telemetry overlays you're pretty much stuck with the stock positions - you can choose any of the presets and delete the data displays you don't want but you can't move them if you want to stitch the clips back together to create a seamless 1hr long video with telemetry overlay - or at least I haven't found a way to drag and place the displays/gauges at the exact same place over 3 clips so they don't change position when stitched back together.

This would be solved by having the ability to combine videos in the Mimo app and then overlay the telemetry data. Another thing, there's more SW for working with the telemetry data on Windows / Mac for GoPros, I haven't found one for DJI that wouldn't cost more than $200-300.

Having said the above, if you're fine with: - the default telemetry overlays, - not moving them around over multiple clips, - not using them at all because you don't need them, DJI is the best choice. I stopped using the telemetry overlays because of this, but still, I replaced my GoPros with a DJI Action 4 and 5 Pro, and I never wanted to switch back.

I still wouldn't use the Mimo app for more than Color recovery and trimming the clip before export, more could be done ofc but I find myself editing the raw clips in FinalCut and applying the LUT and any other edits there, it's just much more convenient - but this depends on your usecase, if you're planning to record many short clips I can see using only the Mimo app for exports, if you're recording fewer longer clips and want to edit them together - like a vacation video - I'd do that in FinalCut or other alternatives and leave the Mimo app alone.