Light, stiff, strong, and classic look all in one. Good affordable option to Ti cages. Stainless steel tubes don't markup bottles like cheap alum cages, and they doesn't bend (creep) when riding bumpy roads with big heavy bottles, so your bottles stay secure. I've never had any problems with King cages, and I have many. Also, aero studies show may show benefits of aero bottle designs, but I'll bet this classic thin-tube design is more aero than an aero cage when the bottle is not installed, which is frequently the case for me since I often carry only one bottle when riding hard.
I was tired of aluminum cages leaving my water bottles looking like they were ready for the trash heap. These nice stainless-steel cages don't leave marks, they hold the bottles well and are nice and light. A bonus is that they are made in the US. Sure, they cost more than cheap aluminum cages, but their quality is worth the extra price.
I was looking for a couple of classy looking, functional cages for my tourer (Sala Vaya 3). I looked at several other stainless models and I almost bit the bullet on the titanium cage but I'm glad I didn't. This thing looks and works great. It's easy to use yet the bottle stays put. I have done many fast, bumpy descents with it and the bottles didn't budge. I like it so much that I'm getting another one.
Although a bit pricier than cheaper aluminum cages, these hold a firmer grip on bottles and also don't mar the outside of water bottles. They also have a superior mounting design that makes them rock solid on the bike. Plus, they are pretty light compared to other steel cages. Highly recommended if you don't want your bottles to fall off on bumpy roads and conditions.