Yeah, I have to agree with your assessment of the sofa. Material is very thin and shows cat claw marks very well. We bought 5 yards of some dense, heavy duty vinyl and covered the top back of the coach, top back of the dinette seat, tops of the driver/passenger seats, and some other corners. It's not only the sofa, but all of the material in the coach that's very thin. We ended up getting the vinyl on a very good sale so for $50 we took card of most of the problem.
2015 Greyhawk 29MV
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TST 507 Flowthru TPMS