The Ozone is one of our favorite sport climbing harnesses. This harness is simple, light, comfortable and has the basic necessities for sport climbing (and nothing more). It only has two gear loops but they are big enough to handle a lot of draws. There is no haul loop, for that you should consider the Black Diamond Chaos. The Women's version of this harness is the Black Diamond Aura.
It faces fierce competition from the Mad Rock Alpha that is much cheaper, the Petzl Sama that is much cheaper and more all-around, the Petzl Hirundos and the Arc'teryx R320. The competition is so close you should try on all five and see what fits best. All that said, if we were on a budget, we would definitely get the Black Diamond Momentum which is $55 less.