Mike Kenzie wrote:
Has anyone had any trouble with multiple cats sharing one of the automated
litter boxes?

Suffice it to say the things are troublesome.
If your cat is large the automatic boxes may not be big enough.
Some cats are afraid of the things and refuse to use them.

Think of how many litter pans you can buy for the cost of *one*
automatic litter box.

Its kind of like buying shredded cheese for homemade pizza or buying
cheese in the block and doing your own shredding.

One way is expensive and convenient, the other is cheap but requires a
little more work.

--
"Its the bugs that keep it running."
-Joe Canuck