I just purchased a ATI Straton Pro 102 for a small Frag Tank Setup I'm just getting started on and I'm thoroughly impressed. Overall the lights construction is solid and it is heavy. I would say the interface and programming of the light is the one thing you will need to get used to. I think here in the states we are used to the fancy pretty user interfaces of the Radion's, Hydra's and such... This is not really the same experience. You still have a visual user interface but it's not as welcoming in my opinion. But once you get the hang of it and look around its really cool. It will even give you an estimated par reaching for various distances as it runs through your light settings. I verified the accuracy with a parwise par meter and it's pretty accurate. It's a winner for me. I'm replacing my Hydra's on my 400 gallon systems with these.
Almost forgot to add that my frag tank is filled with SPS and Clams. At my current settings I'm easily getting over 300+ par at the sand bed at peak time. My fixture is hung a little over 10 Inches from the top of the aquarium. The aquarium glass measure 12 inches high, with the top of the water level being 11 inches from the bottom of the aquarium. The top of the sand bed is about 1 inch high.