I bought my ring about a year ago and in the meantime, it has stretched out quite a bit, so much so that it fell off my finger in the shower and I thought I had lost it forever. After it fell off I requested a new ring as per the lifetime guarantee, and they definitely delivered! I requested a smaller size, so, hopefully it does not fall off again after another year. Beware, they do stretch, so go for the smaller size.
Pros and Cons:
Bottom Line: Yes, I would recommend this to a friend