It’s a beautiful toilet, very sleek looking. It is compatible with Geberit wall tank (2x4 stud). Seat is not included, make sure to check the specifications for compatible seat model.

Decided to return because of the extra expense to install it but it’s a great looking model. The wall unit and seat makes this toilet 1200

Dual flush is a great feature and the wall mount makes the bathroom look more spacious. Bowl cleaning is easy and the flush does its job.