I was shooting PPC when these were all the vogue. I cannot speak for the "Coolness factor" as that is a personal thing. However, as I remember it, having to use a factory barrel was rather limiting. The Python barrel added needed "front end weight" for that particular course of fire. I was on a rather limited income (trying to raise three kids on a modest salary) so my PPC gun was a Model 14 S&W that I added a Bomar Rib to. It would shoot considerably under an inch at 25 yards off the Ransom rest. In fact, factory Remington WC's regularly shot 5/8" groups. My best reloads with my solid base
wad cutters would do about 3/4" but the factory ammo was JUST a tad bit better on average. That Remington Factory Wadcutter stuff at that time (late sixties and seventies) was some pretty wonderful stuff.
So, even tho' my Smith was not a custom gun it would shoot right along with the best of the customs (having a "weight forward" pistol WAS an advantage). When Smith introduced the 686, I considered the issue closed but continued to shoot my Model 14 and still have it. When they put me in the ground it will pass to my sons and son-in-law along with the rest of my guns.
Make no mistake, however, the Smython was a good concept and I would be a happy owner of a good one put together well. In the meantime, I'll just keep on "making do" with my Model 14 and my 686 (6").
Dale53