I did so because ShadowPlay was so unreliable. It would just randomly stop working and, when it did work, more often than not the footage it would save would have its audio desynced gradually towards the end for the last minutes.

I've been using Steam's recording feature since beta and it works quite well. One disadvantage (or advantage depending on how you look at it) is that it doesn't save raw footage, but only already compressed video which makes editing more difficult. I'm hoping they introduce the option to choose how it's saved in the future.

Rolling recordings are a massive boon for developers too. Any time something odd or buggy happens, the user already has it recorded, they just have to hit the button to save it.

It'll be nice to have this on the average user's PC, just like every current console and some previous do.