This is a very solid product.  I made a test door out of some scrap oak, and I was gluing the thing up within an hour, and it fit absolutely perfectly.  There is a bit of dialing in the cutter heights, but that is to be expected, but once this is done you're able to make fantastic and professional looking raised panels.  I'm on Amazon now looking for different raised panel cutters, so I can do this with some variety.  I highly recommend this set.