I have two big cats, who always are very picky with the toilets (just cats ;-)) Since I only had toilets flat in recent years, I had to get used to the toilet covered the two first. Well I thought at least. Through the hinged cover and that you can agree the plastic flap, I find this is very simple. At first I left the lid fully open and made for few days the plastic lid back on it. Since then, the "large" be here always done business, about my nose is very grateful. :-) Flat toilet they use now only for a change for smaller businesses.
What I, however, do not like so much, is that the cover can not be so easily attached to the lower part and when you lift it with scattered in it, I'm not sure if he crashes someday. And my cat always takes place above the filter out and play with it. ;-)
(There are indeed rare) Super price, enough space for big cats less odor and grateful cats :-): So Conclusion