I like the covered tray because although you can smell it, you cant see it happening!
No the smell goes really quickly, it's just the initial waft.
If you were out & came home you wouldn't think - what on earths that smell
You just need to make sure you clean it out morning & night. Because it's hooded you don't get the visual reminder.
I don't use open trays as one of my girls hangs her bum over the edge!
