Hi THIAC,
Here is a little bit of PC history just in-case you decide to swap out the sofa. In the 2003-2008 or 09 era, Phoenix installed what is referred to as a jack-knife sofa. PC owners had complained how uncomfortable they were to sit and sleep on. Phoenix responded by introducing the couch you have with an air bed inside and a storage drawer underneath. Owners initially responded with great reviews, but somewhere along the way, they changed their mind and became dissatisfied with them. Then Phoenix introduced a reclining with ottoman split sofa with memory foam and that seems to have maintained good reviews over the years. I believe Phoenix has since experimented with a few different flavors of the same general couch in concept.
My point to all of this is that if you want to change out your couch, you will likely be most pleased with one of the current day couches because I never read anything negative about them. And since you live not so far from the factory, you might want to consider having the factory swap couches for you.
Please understand that my suggestion has no personal experience associated for we have a fixed dinette instead of a couch.
Ron Dittmer