A warranty is only as good as the company and the company personnel standing behind it. With that being said, my company offers a simple "No-hassle warranty" that openly states that we will make whatever is wrong, right with you. I think most reputable companies will do this without even printing or saying it. I also find that this quality of customer service is pretty commonplace in the archery industry.
However in other industries... I once had a tent that the zipper broke. I really liked that tent and it bothered me that I might have to replace it. This tent style hadn't been made for several years when I contacted the maker about getting it repaired. I expected to pay for the repairs but they took care of it for free, no hassles, no shipping cost or anything! Strangely enough about a monnth later a friend of mine had the exact same tent and the exact same zipper broke as well on his. When he contacted the company, the person he spoke to "wouldn't give him the time of day". Same company, same problem just a different person handling the same situation.
So I agree with the others that a warranty, whether implied or in writing is only as good as the individual person supporting it.