We have seen them before in homes and they had no issues with them and have worked well in small bathrooms.

Marika
essentialsinside.com

I talked to our resident plumber and he said if the restroom is high usage he suggest that you not use one. Wall mounts will eventually start having problems and they are more labor intensive to repair. If it is a guest restroom or low usage he says they are the best thing in the world for saving space and keeping things tidy.

Generally the wall mount toilets have the tank behind the wall. This makes fixes a huge pain.
Also, you will need extra support that most homes don't come standard with.

Look for some innovative shapes of toilets, and always keep in mind how it would be fixed. No one wants a broken toilet for more than a day!

Many of the public restrooms in the building where I work have wall-hung toilets. The only problem I'm aware of with those is if some of the extremely heavy visitors use it and their weight causes it to break off the wall. And in the many years I've worked here I've only known of 3 that came off the wall that way.

I have wall mounted and have had no problems.

Thanks everyone for responses. Very much appreciated!