I like the series pretty much.  One thing I didn't like was when Goku was dead for seven years.  Sure, he sacrificed himself for a good reason, but Gohan became much different and Goten had to endure Chi-Chi for so long.  What a b!#$@.  Another thing I didn't like was when Goku became a child in GT.  If you ask me, Goku is easy pickens for a fight against the Romulans, the Cardassians, the Jem'hadar, the Klingons, and the Remans.  It would be a glorious fight.