I've had one for awhile and it does work, with issues. After using it I don't think it is easier to use than dip tubes. For stain it is fine. For cap dips you really have to thin the paint so doing that over the can is not a good idea, on top of it being difficult to precisely align. For sealing having the shafts in a horizontal position is a slippery and hard to maneuver concept because you have to use one hand so not to touch the wet shaft. Depending on your finish you also may have to thin that which brings the same problem as the paint. Try it though, depending on your desired quality and brand of finishes you may get better results than me.