I used my new Mares HD Icon dive computer on my trip to the Dominican Republic. The first couple dives it was amazing, but did not log my dives. Then on the3rd dive it started to. I am not sure the reason it didn't , but I could not find anything wrong with it, or any help in the book. Other than that lil glitch, the dive computer was awesome. I was doing multiple daily dives and it had a vast amount of features that allowed me to review my dive while underwater. Also, I have dad eyesight, and the color HD screen was great and i could see everything on the screen from my depths and compass. Later i downloaded the log book from the Icon and it gives you a great record of your dive. overall a very nice piece of gear. It will be great when this computer comes out with air integration(which i hear is coming this year)