roof air or basement

highly recommend roof air. If something goes wrong you throw it off the roof, install another and you are cool again the same day. That's simply NOT going to happen with basement air. You are going to need to find someone familiar with your particular system, schedule an appointment so they can diagnose what the problem is, order the parts and schedule another appointment and then hope for the best that they actually knew what they were talking about, got all the right parts and the right tech. showed up for work that day.
Does that sound like I am talking from experience? I will never own another coach that does not have roof air!