If I was given the opportunity to fly in a Experimental Owner built airplane, I'm may decline the opportunity. I'm not sure why I feel this way. Maybe because I do not know the owner building skills. Sure I know it has to be inspected for airworthiness and registered.
Anyone else feel this way?
I've flown in E-AB aircraft where I knew (or was one of) the builder(s).
I have also flown and now own an E-AB where I never met the builder.
I have flown type certificated aircraft where I knew who was doing the maintenance.
I have flown type certificated aircraft where I didn't know the person doing the maintenance.
I have been around and flying airplanes since the 1970s, and one thing I discovered early on is that the quality and safety of the aircraft are entirely dependent on the skill and attention to detail of whoever is doing the maintenance. Like any other segment of humanity, homebuilders, A&Ps (and pilots) have the top, middle, and bottom of the gene pool. I've seen factory-built airplanes that are true works of art, and I've seen some screaming abortions that should have their Airworthiness Certificate permanently revoked.
Overall, I would say that I have seen more factory built aircraft that fall into the POS category than homebuilts. One example that comes to mind was a factory built, A&P maintained, flight school aircraft - during each pre-flight I tried to find something wrong (missing fastener, crack, worn/ damaged part, etc.) that I hadn't noticed before. It wasn't hard. Can't say that I really trusted that airplane, but it never let me down.
Oh, the "inspection and registration" process for a homebuilt is all about paperwork - not actual aircraft construction.