I haven't had any issues yet and the cat box has been great since I have only had it for a week now. I have changed the box once so far with 2 Sphynx cats. I had the Whisker litter robot for years prior to this. I had many issues by needing a new base and many parts. I got sick of it having issues and just tossed it out and waited for Neakasa to arrive! It was a big weight lifted off my shoulders to throw it out! It is still overpriced compared to the Neakasa. I was scared of the open concept at first, thinking more litter would be all over outside of the box. My cats always had tons of litter on the ground from the pervious litter robot. I still have a mat on the ground to catch the litter then and now. I did purchase a step that also catches more litter on top of the mat. Having the open cat box, makes it so much easier to wipe off and clean when litter gets stuck on the sides. On the website, it was easy to text your team for answers and clarification before I purchased it. The website was laid out great, easy to follow and checkout. I also asked the team if the litter I have been using would work with this box and it works. I use Fresh Step Total Control 44lbs clumping litter that you can get from Sams Club, Chewy etc. I feel that it has less dust than other brands I had to switch from in the past.