Great bit set; very clean cuts.  Not sure why the other reviewer said there were poor instructions.  The set came with concise paper instructions, as well as a mini DVD, which contains a video that demonstrates use of the bits.  This is my first use of a set of this type and I had no issues.  The only thing to be aware of is that the panel bit does not have a back cutter; as a result, the panels are going to sit proud to the rails and styles (assuming all are the same thickness), unless you reduce the thickness of the panel.