The brush hog tears and shreds rather than cutting like a finish mower. That being said, when the 48" Rhino brush hog on my TC18 was brand new, it did a fairly decent job of mowing 2 acres of grass on my son-in-law's land. It looked good from the road, but up close, you could see it wasn't as nice as the finish mower. Despite it being a lot faster, my s-i-l soon went back to his Craftsman lawn tractor. Now that the brush hog has been banged around a little doing the rougher stuff on my property next door, it would probably do a much worse job on the lawn.
That being said, we're not going to have much lawn, and I'm not getting a finish mower for the tractor. I have an old MTD lawn tractor that will do just fine for the lawn we will have. The rest of the property will be just fine with a field cut, maintained just enough to be able to walk through it. Now that I have the rough stuff under control, what is growing up in the property is Bahia field grass.