Easy to install and select which way you want the opening to face. Build feels solid, should hold up for a long time. Holds bottle securely. Recently got a frame bag that made it really difficult to get a bottle in or out, so got this to make it a bit easier. Still have to focus more when putting a bottle back in, but it does what I need it to. Overall pleased with the purchase.
I have only limited use so far, so no long term report here, but the cages are awesome. The hold the bottles securely and makes it easy to grab them out sideways. The cages can be mounted to be grabbed from the left or the right by flipping them. They also have a nice matte black appearance.
Purchased the Blackburn WaysideEntry Bottle Cage after regular cages would not release my 2nd bottle, especially in humid weather. The Wayside cage performs as advertised, easy to install, and bottle goes in and out easy so I can focus on those fast rides.
Holds the bottle quite securely, but the sideward angle of the opening makes it a very easy and natural motion to get and return the water bottle. Not just for small frames - I like it just fine on my diamond frame road bike.