I bought a Swiss Army watch (I had enjoyed one of these for 15 years and then it gave out), with the guarantee that it was in good working order and had been checked out. These watches are water resistant to 100 meters, but I noticed that after showering in it, that there was condensation inside the casing. Very disappointing. Of course I had taken the tags off, so I believe the policy is that I can't return the watch without the tags.
Other than that, I have been thrilled with your site: easy to return items; the items that I have ordered (apart from the watch) have arrived in the stated condition. But for the watch, you'd be getting a five star review.