Awesome!  I am a futon person. I would prefer a futon over a sofa. I normally have had fiber or fiber/foam mattresses. I wanted a firm mattress. I dont like sitting on a sofa and sinking in. This is perfect. Firm and very comfortable. I was quite pleased with the springs in the mattress. The mattress opened up and was flat immediately with no odors as the filler type mattress. Took 2 hours for 2 people to put together. Frame is sturdy and attractive.