MY OPINION IS THAT IT PERFORMS BETTER THAN ANY OTHER PRODUCT ON THE MARKET, FROM STUCCO, HARDBOARD OR WOOD FIBRE PANELS AND ITS THE LEAST EXPENSIVE. INSTALLERS LIKE TO GET A FEW MORE BUCKS TO HANG THE PRODUCT, BUT THAT WILL CHANGE. MAKITA HAS A NEW SAW ON THE MARKET THAT INVOLVES A VACCUM SYSTEM THAT ELIMINATES THE DUST PROBLEM. HAND HELD. I HAVEN'T SOLD A STICK OF HARBOARD LAP SIDING IN 3 YEARS. SOLD MILLIONS OF FEET OF HARDI. MOST OF MY CUSTOMERS WILL NOT USE ANY OTHER PRODUCT DUE TO LIABILITY ISSUES.