I got 3 cymbal arms. One short (like this) and 2 more longer. They pair perfectly with the YESS mounting systems on the bass drum and on the side stand. I minimized the space of the drumkit took moving all the cymbals from the standard stands to those and I gained a lot of space on the floor for mic stands and other useful stuff.
Pros: very good quality
Con: (just one) the arm is kind of short. I guess it depends on what you need it for.