3TonksHere wrote:I also do not have completely unrealistic expectations that a litter box will not smell.

Actually, as i noted before, I have been an owner of Littermaid, Litterobot, Purrforma and ScoopFree. So, when i said my the Litter Robot was the smelliest, that is a comparison based on actual personal results not expectations, as you put it. On one end (the winning one), Scoop Free has virtually no smells that I can detect (for 30 days at a time with my one cat), and I am on my third month of this one (also completely trouble free in every respect). On the other end (the losing one), Litter Robot smelled intensely (not to mention disfunctional in many other ways) where even washing in a bathtub would not get rid of the smells, as if, seemingly, maximing the odor over a non-electronic one.
I think what I am trying to say is that I took the Pepsi Challenge: I tried and purchased all the electronic ones and, in my mind, Litter Robot was by far my least favorite and most disfunctional, and that includes odor control. I would prefer the disfunctional Littermaid over the Litter Robot, and so would Todd, the cat, who has ultimate power in this decision. And with Scoop Free, both of us are finally happy.