This was the first trip underwater for my Olympus C-5000 with the Olympus Pt-019 housing. It worked well! No leaks. The water was pretty clear, so there were only a few pics ruined by backscatter. That suprised me since the flash is located directly over the lens and red eye is a big issue with this camera.
Overall it did well. I'd have to get closer to get better pics, but this being my first ocean dive, and 9th dive ever, I was more interested in maintaining proper bouyancy -photography was second. Besides, in a year or two I may have that problem solved with a strobe ;-)