Here an excerpt:

Refresh and Reset
... The refresh option is especially useful when you find your PC acting slow or buggy. In a one-click or one-tap move, you can refresh the PC without changing any of your files, Windows Store apps, or personalization settings.
... you will lose any desktop programs since those are not synced with your Windows Account.
Reset, on the other hand, is great for when you want to hand off your old PC to a new owner. If you want to make sure that everything is wiped, this is your go-to button. No more having to delete individual files or go through manufacturer-specific programs to figure it out.

And there are a lot of comments, like this one:

As a life-long Mac user, I find Window's new direction intriguing. They're shaking things up, while at this point, both OSX and iOS are feeling a bit staid...