A corner bath can are ideal if you have a large bathroom and want to fill up some of the floor-space. These baths come in a variety of sizes and styles and are suitable for use in all but the smallest of bathrooms (it will depend if the room will allow for reduced length but extra width).
One problem with corner baths is the lack of "lying down room" although this does vary from model to model. They tend to offer a lot more width when lying down but considerably less length.
The smallest corner baths available tend to be around 1100 x 1100mm. These should only be considered if you have no other option as these corner baths are very small but are OK if you mainly use the bath for showering and the bath is used for small children. Larger sizes can be as much as 1500x1500mm but you need a big bathroom to accommodate these baths. You also need to take into account the amount of water need to fill the bath. A standard size 1700 x 700mm straight bath holds about 150 litres of water whereas a 1400 x 1400mm corner bath could hold as much as 210 litres, so you must be sure your heating system is up to the task of filling it.
An offset corner bath (as shown left above) offers a good compromise as they have reasonable legroom and most take around 180lt to fill. Size wise, they normally measure around 1500 x 1000mm. Offset corner baths are "handed", Left Hand and Right Hand. Manufacturers have different ideas on bath "hands" so make sure you see a diagram of the hand you require so that the terminology used matches your requirement!
Corner baths usually come complete with a bath panel. Acrylic bath panels can sometimes be a bit fiddly to fit as they are quite large and not very rigid. A lot of corner bath panels tend to bulge out quite a bit resulting in them getting knocked and eventually cracking. Corner bath panels are designed for one model only - there is no guarantee that a panels from another bath will fit your bath if you ever need to replace it. Wooden or wood effect corner bath panels are less popular than they once were but tend to be a lot more rigid in use although they can suffer adversely from water splashes.