Flash for A77?

I need to add a flash for the A77.  The feedback I have seen on the site has not been as positive for the Sony flashes (43 or 58) versus Metz and even Bower (926S).  If I use my Sony rewards points I can purchase the 43 for $150 which is a good price but will I be disappointed?  The Sony 58 would b e$318.  The Metz 58 is on-line for $305 thru Amazon and the Bower for $116.  Any others I should consider?  What do you recommend?  I will be using the flash as often as need be.  thanks