My brother has one, and really likes it.
Price was around $650 for it from our local dealer.
Never seen a used one for sale.
A Blued version is listed, and should show up sooner or later.
My brother is concealed carrying his in a Lobo Model 1 Snap Loop Pancake holster.
We took his by to see Ron Power at Power Custom. Rod did a little tuning on it. I had no idea that you could get a GP100 that smooth.
No issues with the finish so far. I like the way it looks myself.
In my opinion it is about as good as it gets for an all round centerfire handgun.
With a 3" barrel it will conceal carry just fine in a quality holster. The older model compact Ruger grips will make the WC-GP100 carry even better.
You can shoot it in IDPA Matches, using Safariland Comp III speedloaders.
It has very good sights. The Novak front sight can be changed out to other styles, and heights to suit your needs. As they drift out, no need to send it off to get the sight changed. For concealed carry a Tritium Night Sight would not be a bad choice.
Being a 38/357 it will shoot shotshells just fine for trail carry, or around the farm.
It is one well rounded handgun in my opinion. For my general purpose centerfire handgun needs the Willy Clapp GP100 will cover several bases well with a single handgun.
Bob