I’ve done it as well https://www.strava.com/activities/2393643590 moving time was 8:41. I used it as a training ride for a later “SDW in a day”. I found some of the navigation a little tricky, and in places I was just riding across grassy fields with no sign of a path (its possible I was in the wrong place!).
Where it benefits versus SDW is that at the end you are back at your car, so logistically its much easier. There are no taps (that I’m aware of) you you’ll need to rely on businesses, of which there are plenty. I started in Winster, and I used a shop in Hartington and the tea-hut thing on the Tissington trail in Tissington.
Whilst the climbing per mile almost exactly matches the SDW, there are several long flat-ish sections, so when you are climbing you’ll know it!
LR