Is there pee tray very thin, causing the dog to step onto the pee pad underneath it?

As much as a training tray can look good, this one is pretty ok looking. Minimal colors, sleek design. Stands up ok to puppy chewing. This fits the small liners in absolute line.

Love how functional it is. The lift latch combined with the understated Apple design has this pad looking like a piece of art while your dog does their business in style

Clean and easy to manage. Good for indoor potty training. Good material and easy to wash.

One of the better looking trays around, color wise and design wise. Doesn't look too too out of place in a modern home. However, tray is quite shallow, so can only use regular liners, not the super thick absorbent ones. Like that the tray cover can be removed for easy cleaning. It looks light, but has held up quite well, it's hardy.