After considerable research, I decided on the A3BLOZONEWTRCLR, ozone self-cleaning model. The unit came packaged very nicely complete with detailed documentation. The unit is well built with excellent fit & finish, is very "professional" looking and exceeded my overall expectations.
First impressions are overall positive. I am replacing one that had a pullout tray on rollers for the bottle to sit on which made it much easier to replace the bottle. I feel like that should be a standard feature on bottom loading coolers.