The service was excellent, good price and good product (swimming goggles with prescription adjusted lenses). It's really helpful as the site gave clear instruction on how to determine the lens strength for the goggles and was also explicitly clear that this would not give perfect vision like my glasses. I am long sighted in one eye & short in the other, my vision is definitely better with these prescription goggles although not clear (as stated when I ordered) but definitely gives me more confidence in large pools. I imagine they'd be even better for those who are either just long or short sighted. Loved the ability to chose the colours too! I've already recommended the site to friends.