I like my bottle cage, but haven't been able to find a matching one. I'm too vain to run them mismatched, and finding two cages I like hasn't been a priority over the winter. But now it's starting to warm up. I spent the weekend in the desert and did a 50 mile loop, so I got one of these as a temporary solution.
These are smaller than typical water bottles. And the mounting system is in the bottle itself so if you forget it you're screwed. Finally, the plastic bosses don't look great without the bottle. But it's secure and easy to use.
FYI.