I am planing to order a new unit this week and would like to get any opinions and differences on the pro's and con's, good and bad, plus any facts that you would all be so kind to share.

I would especially like to hear from anyone who has dove both or anyone that has had problems or concerns with either of these two units.

I do not know that much about the Optima and how it compares to the Meg. I prefer a unit that can be mission configured and is mission flexible for both O/W and Cave diving capable of dives in excess of 300 feet.