Thats the baby. I don't like the DAO model, got to use to double tapping with the DA. Decocker feature is great. I changed to the hogue combat grips and it made all the difference in how the gun sits in my hands (my brother has owned his P89 for 10 years with standard grips and I never liked how it felt). 9mm is not greatest stopping power but hollow points or other defensive rounds will give you more of a chance. My Sig or Kimber are normal carry weapons but once in a while the Ruger goes out instead.
Once your comfortable with the Ruger start looking for one of these:
Heck, you could have fun with looters with one of these:
It makes it more sporting.