Any experience installing wall-hung toilets?
The main difference between this bowl and the "standard" one is that the waste goes out the back and then down rather than straight down:



(the red arrow I've added to this cross section).

In the UK all toilets (wall or floor mounted) tend to have this arrangement.

As far as everyday operation is concerned they're the same as the "standard" as it's the action of the water rather than gravity on the waste that flushes it away.