Pretty much everything I have read about the Rohrbaugh has been negative. With the cost, the subject doesn't come up very often. I think it is ridiculous to pay that much for that little gun. But the few people who have seem to not be very satisfied.
I like my P99c, which is about the size of a Glock 26. If ya want a smaller 9mm, look at Keltec or Kahr. Just realize that as U get smaller, that size 9mm is not very pleasant to shoot. Also, look at the S&W CS9 - Its a bit bigger than the Kahr, but is still single stack.