I have had a great customer service experiance.
Around 5 years ago my wife bouigh me a pair of pants as a gift. They were the same type and construction of a set she knew I loved and wore often...but they were..the brightest navy blue. Like super cop navy blue. I know I wore then twice and just could not take.
So a couple week ago I get to looking at what I need to replace and these pants are there. I look at the companys web-site and I notice a "100% no-bull guarentee". So I call them.
Short story is I sent back the pants and they sent me out a totally different set in a better color no issue and they refunded my shipping cost to them.
I love their stuff so check out Duluthtrading.com if you are looking for durable clothing and you want amazing customer service.