We had a Winnebago Via & the fit & finish was good. Few minor problems that were corrected while under warranty, but this is common in all rvs. Things I would look our for are age or tires and condition, does it have basement air, does it have Schwintek slides. Basement air and Schwintek slides have been a problem for Winnebago and they have stopped using basement air & have worked with Schwintek to improve slide mechanism. Make sure all appliances & systems are working. Get all service records from your friend, and it would be a good investment to pay a mobile rv tech to spend a few hours checking it our for you. Check for water leaks everywhere.