I have not hunted it myself for about 4 years. However I did the late season November Bow hunts. There are not so many bucks up there, but when you do see one, they are grand!!!
Be every so careful to glass the crap out of the bases of the larger sage brush. I have walked over them more than once, scares the livin daylights out of you when they blow at ya and run off. If you glass well, you will see them bedded down.
Believe it or not the best spot to get them is right at the cottonwood creek Ranger station. Thats the spot you have to drive into to start hunting them, at least in the Bow season. You can park right there in the bend of the road and go up the hill east, or drive into the Ranger station area, and follow up the game trails a ways. Super steep country so be in shape.
Most guys tend to want to go on into the unit more remotely and there are so many hunters from Boise headed up there its nuts. The deer know this too, as the cottonwood road is their safe zone. I have seen them full out sprint down the hill to it and stand on the other side of it and stare at you.
By hunting the boundry line, the other hunters will push the deer down their natural migration path to you. Your not having to go in so far in the unit, and if you go mid week, there are usually less people up there hunting.
If your rifle hunting, wear LOTS of orange, or expect to be shot at, this unit tends to attract alot of brainless people too.