I started with lots of clone tips (for cheap!) and some if them came defective, or fell apart with use, and all of them had different calibration. The Ksegr can handle that, but it's quite painful and tedious. In the end, I just couldn't quite get the performance I wanted from them. Maybe some of the clone tips are better than the ones I got! I hope so; many people seem happy.
I switched to a few well-chosen Hakko tips. None of them have fallen apart, they share calibration, and they just work, nice and stable and reliable.
The cheap tips were a good way to start, I guess. I learned what my favorites would be. I started replacing with the genuine Hakko's one at a time.