I have the 2 1/4" barrell SP101 and I love it! It shoots very well and I can carry it concealed in my pocket Nemesis or Galco belly band.
When I debated buying it, I figured that if I was going to use my .357 Magnum for self-defense purposes, it would be within 25' of the bad guy and so practice shooting at 50', 75' or more was not a criteria that factored into my decision. But make no mistake, it IS accurate.
At the range, I use mostly .38 Special to practice and get in the zone but I then shift my focus onto shooting it accurately, rapidly, off-hand, up from a crouch, one hand, etc. with the full .357 Magnum rounds loaded into it. I believe that I must get fully accustomed to using this revolver real world as if I were suddenly put in a self-defense situation.