the GP-100 (mine's a 6 inch full shroud stainless model) was my first centerfire & it's built like a tank. Sometimes the double action trigger pull is a little gritty but all you have to do is polish the strut that holds the hammer mainspring to get rid of it.
Gun Tests magazine -which runs no-BS tests and accepts no ads - just gave it its top handgun of 2006 award.