I don't have a place to set up a grinder permanently, so it is going to have to be something I stow when it's not in use and bring out when I'm using it. Space is a concern. That makes the standard bench grinder seem suboptimal as they are somewhat large and heavy.
I was therefore thinking that the recently introduced WorkSharp 3000 might be a suitable alternative. This device spins sandpaper on a glass plate. I have seen this thing positively reviewed in a few places, and it's comparatively small and light.
Does anybody have any comments on the task of grinding tools and whether this device is a reasonable substitute for a bench grinder?