Cleat, I don't have a Rhino 160 but do have a Rhino 172. Mine is only a year old and has seen only a few hours of use, but I like it so far. It is well built, cuts as good as a rotary cutter should and has suffered no damage or dings yet.
The one beef I have is common to just about all rotary cutter manufacturers today, and that is the cheap plastic round shield they use on the input shaft side of the gearbox. I.e., the shield that covers the shear pin or slip clutch. It is darned near impossible to adjust the slip clutch with that shield in place. There are two little snap-in plastic covers on the shield that are supposed to be access holes to allow you to work on it, but they are a joke.
When I needed to adjust my slip clutch recently, I finally got so frustrated with it that I took some tin snips and cut the plastic cover lengthwise down bottom side so I could slip it completely off the machine. Ahhhh, much better. I cut it in a way that I can re-mount it.
In the old days, manufacturers used bolt-on metal shields, and they were easy to remove and replace when necessary. Some of them even had a hinge mechanism to let you fold them up out of the way, and then just fold them back down.