using the flash for a few days on my A58 and am completely satisfied. The images are perfectly exposed, regardless of the pivotal position of the flash is used, with or without a reflecting sheet whether or ADI vorblitzTTL. einiziges tiny drawback: even with full batteries does it take to recharge (of course with full NiMH batteries 2950 mAh) 8-10sek. not so important in practice, since the full power is rarely accessed.
a quantum leap yoy. the internal flash, special case of indirect illumination (but that was clear, or ...)
was in competition at the (probably not worse) Nissin i40. comparable data, also for Sony MIS, big advantage: much smaller, but also more expensive (!). decision from the belly for Metz.
have, however, the flash with acquired Amazon (Let's see if this will get edited ;-)) as clearly elsewhere (20, -) cheaper ......