After careful hands-on testing, we feature our favorite gear and gadgets as Mashable Selects products in our dedicated shopping guides. Table of Contents As a lifelong cat owner, it is with the knowledge of experience that I say the chore I dislike the most is cleaning the litter box. I've tried to interrogate this to no avail — I don't find it particularly gross or tedious (it takes all of three minutes max if you do it daily). And while I couldn't find answers to my aversion, when Petlibro released its first automatic litter box just a couple of months after I adopted a new kitten, well, it felt something like an answer from the universe. My kitten, Mouse, graciously took up the task of helping me test out the Petlibro Luma Smart Litter Box, both with and without the AI feature set. After about three and a half months (and at many pounds of growth on Mouse's part), here are my thoughts on the Litter-Robot alternative.…