The main reason why corner toilets are so popular is because of their ability to save space. A normal toilet will usually need three feet and nine inches of floor space from the wall, whereas a corner one will only need two feet and nine inches. This amount of space difference may not seem like much but if your bathroom is small, to begin with then this could be all the room you need to fit it in there.
Corner toilets also have other aesthetic benefits besides saving you space. Most corner ones can blend into your decor very well, especially wall-mounted ones that are made out of matching tiles. They can camouflage themselves to avoid drawing attention away from the rest of the room.
A corner toilet can also be a great asset if your bathroom is cramped for space since it will make your bathroom look larger by reducing the size of the apparent “bathroom footprint”. When you remove a 90-degree angle from the room, this reduces the amount of area in that corner and therefore makes the remaining part seem larger when compared to what it would have been with a regular sitting toilet.