Reply by azor

I have been using them for over a couple of years now, on and off. When I want to fasten some boards together quickly they get the job done fast. Most of my projects are at the utility level so I don’t have any experience with them with finish issues involved. They hold well and nothing has come apart on me yet. I don’t recommend using a chisel to reduce any part that is proud of the surface you drill into. A Japanese saw and final sanding work the best for me.

-- It isn't as easy as the demos make it seem.