The handle fixing is very well made and fits perfectly. Keeps you safe on the camera and increases the weight of the camera only minimally. The ergonomics is very good, I can hold (glove size XL) with my hands the compact, but quite heavy camera securely, which was not possible without the handle attachment. I could therefore give a clear conscience all 5 stars.
However, what bothers me is that Sony has done so expensive this part, which was saved in the camera and in the manufacture probably cost only a few cents. The value for money is poor.
Overall I give therefore for the really very good, but outrageously expensive part only three stars!