I love the understated look of these. You'd have to really be checking the bike out closely to even notice that the bottle cages are owls. As for function and quality, they are top notch. I don't see a bottle launching from one of these on a bumpy commute. PDW makes great stuff.
Use these on a touring bike, and over 1,100 miles they worked flawlessly. Just the right combination of retention and ease of use. Nice flair for the bike, too.