Well, I bought an Omega to become my dedicated IDPA ESP gun, but that didn't work out to well for me personally*.

Another USPSA & IDPA shooter bought an Omega the week before I bought mine. He has started using his in both (just our local club matches for USPSA, so not being "on the list" yet isn't a concern) with success. He's just still adjusting to the gun to a degree. No problems, though.
* - (For those that haven't seen my threads here and elsewhere, I had major issues with the Omega's trigger bar spring, and the pistol is back at CZ for warrantied repair.)