[Garand]

It could be handy.
HipStar 3 - YouTube

 

[BigEd]

I ain't about to laugh. The way my feet and knees are getting at times I could use that in some places.
But some of my favorite places on the other hand might be a little bit narrow of a path.
Seriously considering it plus for shooting range use.

 

[John in AR]

Could be kind of cool in the right situation if it's made well. With the addition of a removable stand or box, it seems like it could be handy as a range cart for three-gun, sass, etc, as well.