Remember it's just a bike, nothing magical is going to happen by changing frame material on short rides. It takes 5+ hour rides to feel the geometry/material/Carbon layup differences and how it effect the body.

I'd take it for another few ride, you have like 4 weeks for the money back thing? Why be so rash on sending it back so quick, unless geo fit is all off. But seems like you tuned it out.

Rough riding has allot more to do with wheels, how they are built, spokes and tire w/ PSI a major factor. IMO 32h wheels are going to be stiff as hell and transmit allot of road feedback unless you air down a bit. Air down 3-5psi and see how it rolls.