Automatic Litterbox Central

There are two new automated litter boxes on the market- the One-Touch Litter Round UP and the Litter Sweep Ultra. The One-Touch is a self-scooping litter box that is activated by the human pushing a button. The Litter Sweep Ultra is identical except that it is automatic, using motion sensors like the LItter Maid. The LSU waits 30 minutes before scooping, though, giving clumps more time to harden.

I've like to see some discussion of these- I am using a litter maid now, but it's giving us some trouble. I am reluctant to buy an expensive new product, though, until I hear other peoples' experiences.

I just saw the Round-Up yesterday. I am having trouble finding more about it online but I did find a similar forum here:
http://www.catfancy.com/anforum/topic.a ... ichpage=12
and it goes into some detail from other users.
Bottom line seems to be, there is no perfect cat box. I guess we're all still searching... but if you do buy one let us all know how it goes!