I have a 21" A custom rock ride and love it. It took a while to find the sound I wanted and this one covers it. I also have the 14" New Beat hats, love 'em.
Custom A's are by far my favorite line of Zildjian's. They look and sound great. I just think there getting a bit expensive. Aside from that critique, sound and quality wise they a great Cymbals. I use several myself.......T