The Model 36 is a solid revolver. I prefer the all-steel J frames like the 36 myself as I think the extra weight helps a bit with the recoil.
The price is good, assuming the revolver is in good mechanical condition. Read the revolver check out and then check the gun out for yourself. If nothing else, I've found that a close visual inspection helps. If you see buggered screws or a mis-aligned sideplate, those are bad signs. They mean someone who didn't know what they were doing took the gun apart, most likely for some ametur gunsmithing.
A little holster wear is fine and to be expected.
A couple tips: Any old revolver would benefit from having a gunsmith remove the sideplate, flush out the old dried-up lube, and then relubricate the internals. Sometimes it makes a huge difference.
This is a blued gun: Keep it oiled or use a wax, like Rennasiance Wax, especially if you do carry it. Blue guns do rust quicker then stainless guns.
If the gun has the original skinny grips, consider replacing them with a set of Pachmyrs or some other aftermarket grips. The factory grips are great concealment, but awful for shooting. I've found some slightly larger grips make all the difference in actual shooting. I like Pachmyrs, but there are other options and other people have other preferences.