There are many choices to be made when buying a corner sofa. Corner sofa designs are plentiful, and considerations of upholstery material, size, and other factors are taken into account along with the overall look of the chesterfield sofa as a single corner unit. Then, there is the option to get a sofa bed. Here, corner or sectional sofas often have the advantage of offering both more and deeper seating space, which can translate into the sofa being used as a bed without having to do anything besides remove the pillows and put a sheet over the sofa. While they aren't as versatile as a separate sofa and loveseat in terms of arrangement possibilities, corner sofa furniture do offer more sitting and sleeping possibilities.
One of the first things to decide is size- should I get a small sofa, or a large one? That will depend mostly on the size of one's living room, of course. The smallest models are the two-piece, L-shaped ones. These are about the size of a traditional sofa and loveseat combined and can be quite compact compared to some of the behemoths which can consist of five separate pieces- yikes! The contemporary corner sofa was designed with television viewing in mind, and the really large sectionals may really be set up to facilitate staring at the boob tube. Cup holders, remote control storage, and reclining seats come standard on many such models.
Another thing to decide, just as with normal sofas, is whether to get a leather corner sofa or a fabric one. A sofa made of full grain leather will be stronger than a fabric corner sofa and therefore last longer (assuming the frames are of equal strength- which they often are not!). And here, the effect of the leather can be even more impressive as you have a long, unbroken surface of leather to look at- just imagine all the leather on a large black leather sofa bed. If the sofa will get heavy use, leather can be a very good investment, but again, make sure it's full grain leather if you want to get the most use out of it.
It's not recommended to buy a really cheap chesterfield corner sofa, as you usually get what you pay for and here you might be getting something that won't stand up to even regular use for a very long period of time.