Bro I will only say this. If you are even considering a comparison to an Etek or an Ego ($549 or $894 respectively) then you should know that at $300 dollars a ZII is definitely worth it. With the money saved you can buy a great mask, a nice 48ci-56ci 4500psi tank and a great hopper and still come out less than an Ego or about even with an Etek.
May your trigger finger be as fast as your mind.
May your reflexes be as fast as your thoughts.
May your team communication be as strong as your hunger to win.