I finally had a chance to try one out recently and was very frustrated with the experience. After attempting to use several shown on Bird's map I gave up. Some

I finally had a chance to try one out recently and was very frustrated with the experience. After attempting to use several shown on Bird's map I gave up. Some were broken, some were almost certainly being hoarded inside of apartment buildings, and some simply could not be found anywhere near the map marker. The experience was a huge letdown after being tempted to try the product so many times.