I've experienced nothing but great things from KwikSet.  I had a 10 year old handle set fail after receiving much abuse from my large family.   It had a lifetime warranty which KwikSet faithfully honored.  After the warranty issue was resolved I was contacted to review this handleset.  I love it!  I have 8 children and we use our handlesets excessively compared to most families.  This one is very durable and stylish.