I just cleaned out (not carved, not yet) five pumpkins.  Two of them I did with the Pumpkin Gutter  and the other three I did with regular pumpkin scoops (Pumpkin Masters orange plastic scoops).  It may have something to do with the pumpkin crop this year or it could be the fact that the commercial pumpkin growers harvest the pumpkins too soon, but the Pumpkin Gutter wasn't really working well.  In a white pumpkin I was gutting with it, the Pumpkin Gutter was actually liquefying the pulp.  It doesn't work well with the stringy, seedy part and you can't get at the bottom of the pumpkin with the blades (the pumpkin gutter looks like a mutant electric mixer blade and is used with a drill).  In the same amount of time it took to gut two pumpkins with the gutter, I gutted three pumpkins with the Pumpkin Masters scoopers.  I also did a better job with the scoopers than I did with the gutter.  

You don't really stay much cleaner with the gutter as you still have to reach in there and scoop out seeds, pulp and strings.  The Pumpkin Gutter is an interesting concept, but I think the good old-fashioned way works better.

http://www.pumpkincarvingtool.com/