An excellent choice. Breathes very easily. Well built. I'm very pleased with it. My only complaint, and it's a very minor one, (actually not really a complaint, more of an observation and tip) is the cleaning process for it. The Atomics have a seat saver feature that holds the valve off the seat when not under pressure. Thus, when cleaning when it's "off" a tank takes a little extra care not to get water in it. Rather than submerging the second stage under water, I just run water over it and into the mouthpiece of the second stage. The first stage is cleaned like all others. If you have it still attached to a tank, then clean as you would with all other regs.