The round design and the top notch where you can place a decor is very nice. The size is ok; however, I would like to see it even larger because my 8 kg Maine Coon who is on the smaller side for an MCO, still has to do some aerobics to get in there. I would say at least +10 cm both in height and diameter. You can never go too big.
I was aware that there are no clips and can also say that it would be good to have. However, since some of my cats are high sprayers, I always use duct tape from the inside of the litter box to cover the seam, so that also works to hold it together.
Also, I would suggest designers consider a notch where you can anchor the bag when cleaning the box, take inspiration from CatIt boxes, it's very convenient.
Overall, I am satisfied and hopeful that improvements will be made, because then I will definitely come back to purchase more.