I mean I can't comment on modern Omni's. I still have a first-gen Omnivap and I feel like it still hits nice.
The only real reason to upgrade to the omni (in my book) aside from the titanium body, is the fact that it has an adjustable carb piece so you can customize your optimal heat/air ratio without constantly fiddling with the air intake hole.
Although I'll admit - I need to disassemble and clean my old omni - it's not moving the carb adjustment piece the way it should anymore.