Groove rings are above all others. One thing that sets them apart (other than the quality craftsmanship and the many designs you can get) is the people behind the ring. Anytime I have had a question or an issue, the staff have been very helpful and quick to resolve. Just as their site claims there is a "no questions asked" policy if there is ever a need to use warranty claim.
Bottom Line: Yes, I would recommend this to a friend
