About the best "tip" that I can pass on is that there's no substitute for putting your hands around the camera and making sure that it fits, is balanced and you're confortable with the controls.

While I have no real problems with mine, I do find that the motorized zoom function is slightly annoying because of 1) the motor gearing zooms faster than I'd like and 2) the control is overly sensitive and not in the best position for me.