I was able to rent a 3.5" 27 about 5 years back. I was very suprised that such a gun would be sitting there on the rental shelf, and couldn't pass up the opportunity. The owner insisted that only .357 Magnum be fired out of the gun, so I gave it a go to see what it would all be about.
I also rented a CCF Raceframe metal Glock 22 and a M&P .45 for further comparison. The Smith's sights were crisp, the trigger was smooth, and it gave me the impression of impressive accuracy. I was unaccustomed to proper support hand thumb placement for a double action revolver, and when my grip was combined with the .357 ammo, I found it difficult to shoot the gun as quickly as the autopistols that I was more familiar with shooting.
Great fun, though. Putting .357s right where I wanted them was a pleasure, although double action revolvers are unlikely to capture my interest.