What you have is basically an adjustable-sight variant of the New Vaquero - a "mid frame" size. In other words, it's built on a smaller frame similar to a Colt SAA, and the overall quality (and average accuracy) is higher than the large-frame cousins.
The standard "Blackhawk 357" is built on a 44Magnum-class frame. While your gun isn't quite as strong, it's still tougher than a GP100 (bigger cylinder for starters) and is able to deal with any factory 357 load including the "wild child" stuff by Buffalo Bore, Doubletap and Grizzly Ammo.
In short, it's an excellent gun, one of the best SAs Ruger has ever made. A LOT were produced so it's a shooter versus a collector.
What else...hammers can be swapped straight in from the SuperBlackhawk or with minor mods (to the hammer), a Bisley hammer will fit. These will lower the reach to the hammer by your strong-hand thumb, if you're a strong-hand thumb-cocker (as opposed to off-hand cocker). Other Ruger SA grip frames can be adapted as desired, you just have to swap mainsprings, mainspring strut and add the pre-lock "keeper" that the lock has replaced.
And it's REAL easy to convert it to free-spin (reverse and forward spin with the loading gate open). Cock it while unloaded, look in to the rear of the frame underneath the transfer bar, you'll find a small hex screw. Remove that, remove the spring and plunger behind the screw, bingo...it'll spin both ways. It'll also spin more quietly - what you removed is a "clicker" thingie. And there may be a bit less wear imparted to the cylinder ratchet teeth as a bonus, although it would take a LONG time for the difference to be noticeable at all.