As far as the brand name goes, I have had very good results with the 2 units I own, a Swisher Finish Mower and a Swisher Brush Cutter. Both units are pull behind units that I pull behind my quad. Both are used commercially.
n1alx, what experience do you have with this brand? Hopefully you aren't another BHB, FSM, or whatever the kids name is that bad mouthed products he knows nothing about.