Certain aspects of it are really good, others are heavily flawed. Worth 20 or less for any UFC fan, maybe 30. Maybe.
If you played ea ufc 2, be ready for a learning curve, as they switched up blocking, head movement, and countering, but once you get the hang of it, its fun to bang fools out online. There's also a weird delay in the kicks compared to 2, but you get used to it
Be wary though, if you face a significantly better ranked submission guy or wrestler, there is essentially nothing you can do to stop them if they know what they're doing. realistic in that sense, but also infuriating.
Same with a guy with significantly better cardio. If they know how to play it, you're done.
Like I said, worth 20-30, but no more