Any experience or thoughts on the WS3000 Wood Tool Sharpener? Here is my preliminary take from watching their video and product description http://www.drilldoctorstore.us/ws3000.html:

I use the “Scary Sharp” system and like the clean, no water or oil, inexpensive, flat (with no truing of a stone) a lot. I like also that I can easily bring the kit with me to a job site, not that I do a lot. So I think these guys are right on in building this. I think the WS3000 is priced reasonably. The only automated system I have ever considered is the Makita water based system (very messy,) which this system clearly emulates in many respects. I like the small form factor for the tool. Easy to stow. One downside of rotating disk grinding surfaces is the potential for differential grinding due to differences in tangential speeds. This wouldn’t be a practical problem for narrow tools, but might for wider tools. I suppose it can be minimized by moving the tool around. The “under the counter” angle sharpener is clever, but I fear impractical in that all wear will be localized in one circle on the disk and for a 2″ wide tool may likely result in differential grinding. I have always liked hollow ground tools, and this machine would produce a flat grind. A flat grind in theory provides more edge support. A hollow grind is easy to touch up by hand. You would have to use this power tool for every touch up. I am not sure I would like that. I like that they have not designed it around proprietary abrasives. There are some marvelous choices in ceramic and other innovative abrasives. I very much like the ability to quickly and easily lap the back of tools, a key factor in “sharp” i.e. two intersecting polished planes. It is PITA to do it by hand and has led me to carpal tunnel on more than one occasion, and hours at the bench. I can’t quite comprehend how gouges and the like would be sharpened in a controlled way, or how jigs would be used on the top bar. But I see potential there, and would like to better understand.