Shot one of these OADefense double-stack 1911-style guns yesterday. Liked it. Priced midway between Staccato and Springfield Prodigy, uses readily available and affordable SIG P320 magazines. Can't speak to long-term reliability and overall durability, but I can vouch for comfort, fit and shootability.
Don't know whether or not there is a "drop safety" issue such as that which is known to affect the Staccatos. I do know it was enjoyable to shoot.