This beanbag sofa is perfect for our basement lounge.  Although you do sink pretty low if you’re fully grown (or almost fully grown, like older kids), it’s an excellent alternative to a standard couch and can even be slept on.  Just a little muscle helps break up the foam and fill out the beanbag (took us about 2 days to get to full-size, not bad at all).  Very happy with the price point and overall comfort level.