Has anyone had bad experiences with synthetic? Should I go dino?

I have a 1997 4L60E (on a Firebird) with about 76,XXX miles.

I was planning on using Mobil 1 Synethetic ATF, but saw conflicting reports from reading through some of the threads about whether or not to use synthetic.

Has anyone had bad experiences with synthetic? Should I go dino?

Thanks
rhummer37

 

I have used both seen both go over 100000 miles and do well so its a matter of choice I have also heard conflicting comments personally I just use dexron now because i didn't see the great advantage that offset the price difference