Flash question - AF400FTZ

[Michael Chan]

I am looking for a decent flash for my Pentax *ist DL.  I have an old  
Vivitar 383 super but I am ready to upgrade.  I am looking at the  
Sigma EF-500 DG Super based on a recommendation by Mark Roberts.  I  
am also looking at the Pentax AF400FTZ and was wondering if anyone  
had an opinion on that unit as I have a chance to pick one up for a  
rather low price.  I am having a hard time finding any reviews on the  
unit.  Will it fully support TTL fill and remote wireless TTL?  Any  
other thoughts?

Thanks and best regards,
Michael Chan