Does anyone have experience with the Lofa Sofa?

I'm thinking of purchasing a Lofa Sofa for my great room. I purchased a Broyhill sofabed 4 years ago. It weighs a ton and is uncomfortable for sleeping. The Lofa sofa seems to be a terrific idea to replace that sofabed.Since I would have to purchase it online, sight unseen, I wonder if it's as comfortable as they say,and how it will hold up under every day use: will the mattress/seating area retain its resiliency and shape; will seating comfort be retained for a period of time? The sofa I'm sitting on right now is 6 years old and the springs are bad. I paid $1500 for this most hated sofa--I'd like to get some feedback from someone who's had the Lofa Sofa for some time.