Is the Litter Robot really good? Most reviews I've seen said all those auto-cleaning litter boxes are meh at best, but man this is one chore I could really do without.
Doing a monthly or bimonthly deep clean can be a bit of a hassle with such a big item, but for me preferable to daily scooping.
I've owned two. Once you get past the sticker shock, it's quite convenient. I also used regular kitchen trash bags for the tray. Was perfectly serviceable.