Wristshot:Gary,
I use an Aeris computer, and I have not had any significant problems with it. I have an Atmos 2. Of course it is my back up computer so I only have a half dozen dives on it.
I love the console, and I love the knife at the back of the console. I love it so much I converted my Oceanic Versa Pro to the Aeris console.
The only thing I dislike is that the ascent rate measurements are really sensitive. Just pulling the console up to look at it can register an alarm for ascending too fast.
Wristshot
I use the Atmos II also, and I was curious about the ascent rate concern. What is your sampling rate set at? I think I may have increased my setting for this and may want to back it back down.