Admittedly, the majority of my reviews are negative, but not this time.
I talked my wife into buying a bike at a garage sale, and the tire blew the first time she rode it.
She brought it in to REI, and even though we did not buy it from there, and it was not a $1000 bike, they were great. They fixed the problem and didn't even charge her.
I had heard about REI service before, bt never really bought into it. From now on, if I am considering a purchase, I will check to see if REI has the item first.