It comes recommended by most of the CZ guys on here (Birds Away, LLHxxx, etc.).
When I researched it, I saw mostly info like this review:
"The CZ-75B Omega is basically a typical CZ-75B, the only main difference meriting its “Omega” designation is the fact that the trigger system has been reworked by the factory to make smoother than the standard model. Externally it looks exactly the same as the standard model, and the only way to tell the difference is by the Omega symbol on the slide markings. The trigger is supposed to come as close as possible to a custom trigger job."
That is not really accurate based on what it posted on the actual CZ website.
CZ claims the trigger is a simplier trigger.
It is only used on a couple models of their pistols.
The original CZ75b trigger system is a complex system but has a reputation for excellence. To get the most from it does, however, require professional gunsmithing by a smith who knows CZ triggers.
The Omega system came out to allow for safety-to-decocker conversions. It is used on the 75B Omega model and I believe the new plastic duty guns [P-07, etc] but not the older Shadow plastic frame. I believed it was developed for police departments (but I'm not sure of that) as it allows for the safety to be converted to a decocker, depending upon the needs of the department.
As for the "custom trigger job" comments, that is one that I totally dismiss. I've owned 2 of them. Its a good trigger. I wouldn't call it close to a custom trigger.
Seems to me that the biggest advantage is on your wallet. Being a simplified fire control system it costs less to produce because there is less machining required.
The biggest downside is that it could not be used with the 22lr Kadet Conversion kit. Its possible they made a new Kadet system, but I am not sure if they ever did that.
From the practical standpoint, the original trigger system has all sorts of aftermarket mods available, the Omega does not. That may be of NO INTEREST to you so it may be a NULL issue.
Morning llh! Or should I call you the CZ Jesus!
Good morning SD, How is your Rami running?