I've been having terrible luck with Logitech, and decided to never buy from them again. An $80 speaker set's audio input jack broke, and Logitech absolutely refused to fix it or help me in any way since it was a month or so past the one year warranty. I live right down the street from Logitech and could have just driven out to their HQ, but they completely stonewalled me.
FWIW, I've had the opposite experience with Logitech for mice:
2010: replaced a ~18-month-old MX400 with an MX620 under warranty after the left mouse button became unreliable (without proof of purchase)
2013: replaced that MX620 with an MX705 after I asked if it was possible to buy a replacement wireless receiver (part of the USB connecter had broken off IIRC) - I had assumed it would be well out of warranty as the original purchase was back in 2008.
I can't say if the difference is because I'm in Europe, they've changed their practices more recently, or it's just luck of the draw.
