The one on my M9 open station (see picture in post 9) has been flawless and I've hot some low hanging branches with it and no damage at all. Easy to install ( the mount attaches to the top of the ROPS, it's adjustable for angle and it folds down if you don't need a canopy. Assembly is a bit difficult, the instructions are vague. I just used the picture on the assembly instructions to put it together, took about 30 minutes. All hardware is included, no lockwashers needed, all the nuts are insert (shakeproof nuts) and it's light enough gor one person to install and remove.
Very happy with it. It has an underframe (under the canopy) that you could mount auxiliary lights on or whatever if you want to. I don't Rural King has a killer price on it. I got mine from a different source (All States Ag)
Looks good, matches the Kubota orange perfectly, don't shake and goes on easily. What more can you want (except a cab of course) and I already have one of those on the other tractor.