I took advantage of the deal going on last month, and just got my first dive in with my sda out at the millbrook quarry doing a checkout prior to a blackbeard's liveaboard trip. Call me crazy, but a 3mil suit is not enough in that quarry 
As for the sda, the water was very murky with visibility going from 15' down to next to nothing. Swimming through into the open areas was disorienting with absolutely nothing there but me, the muck and my buddy. That being said, the sda was staggeringly visible. Every angle it was perfect, even my buddy said he could see it clear as day.
I found the interface to be "enough" all of the information available to see with it changing to show urgent issues like fast ascent.
I would like more options to choose my own alarm sounds though, especially on fast ascent, though descent would be cool too. Maybe a target max depth separate from actual max depth. It is just too darn easy (for me) to get distracted doing a bunch of stuff and I would like it to do some more interesting notifications to alert of changing conditions.
I would also appreciate an auto boot/start when you get down below a few feet. Its just annoying to have to start it up with the controls and hope it doesn't shut off before you head down. What if you get into a conversation for a few minutes in the water before you head down?
That stuff should be possible I would guess, but who knows when.

As for the sda, the water was very murky with visibility going from 15' down to next to nothing. Swimming through into the open areas was disorienting with absolutely nothing there but me, the muck and my buddy. That being said, the sda was staggeringly visible. Every angle it was perfect, even my buddy said he could see it clear as day.
I found the interface to be "enough" all of the information available to see with it changing to show urgent issues like fast ascent.
I would like more options to choose my own alarm sounds though, especially on fast ascent, though descent would be cool too. Maybe a target max depth separate from actual max depth. It is just too darn easy (for me) to get distracted doing a bunch of stuff and I would like it to do some more interesting notifications to alert of changing conditions.
I would also appreciate an auto boot/start when you get down below a few feet. Its just annoying to have to start it up with the controls and hope it doesn't shut off before you head down. What if you get into a conversation for a few minutes in the water before you head down?
That stuff should be possible I would guess, but who knows when.