I'm a big DR fan! I was lucky enough to pick this up used for $500 a few years ago and it a BEAST! There's very little it won't obliterate (up to 2" diam) and I use mine a lot!
This is the one I have, and I believe it's a '97 model and although I lost reverse early on, I've only replaced the belt and it gets used and abused!
Last weekend I wanted to clear a new path and the DR was certainly up to the task.
By the way, it won't stop it's forward motion unless you stop it! If it comes up to a big tree it will start climbing it so be careful! I love this thing!!!