I remember reading some impressions by a russian test pilot of, among other things, an A310. He was rather down on the stall behavior. The stall came on at low AoAs with little or no warning, and the ac lost lateral stability rather dramatically and pitched up making the situation worse. He described the ac as a case of the mfg trying to compensate for the ills of an aerodynamically questionable platform with electronic doodads.
Granted that AF447 is a different plane, although sharing the same gene pool as the A300/310, how sound IS the airframe? When the electronic protections cut out under less than optimal conditions and the pilots are required to manually fly what may be an evil-handling airframe?