Cappelini's In Out Sofa by Jean Marie Massoud  

Never tried it myself, but...
Never tried it myself, but when looking at the images at Cappellini's website I get the felling that this is not a sofa for a living room. It is more of a sofa for a corporate lounge setting in my opinion...
Myself I have a the 'Noon' sofa by Eero Koivisto for Skandiform, which is clearly not intended for home use. It is ok for occasional seating, but nothing more. It feels like I'm in the waiting room at the dentists or something like that. (although a very design aware dentist...). Got it for 35 euro though...