The 239 is a well made, reliable, smaller mid-size pistol. I've had two, one in .40 and one in 9mm, neither gave me any problems. The aftermarket wraparound grip is a must. For the capacity, you can probably do better as far as concealability goes. The 239 is a little top heavy, and the single stack design is not exactly space efficient. If you can CC a 239 you can probably CC a 229 and enjoy the extra 3 to 5 rounds depending on the caliber. If you are comfortable with the pistol, it does make a fine carry piece, and it will serve you well. Other options to consider in this size are the S&W 6906, 4013TSW, Glock 19/23, and M&P XXc. Try as many as you can and shoot/carry what you are comfortable with.
Chris