My husband watched Gundam when he was younger, so we decided to go back and watch all of them. So far they are ok, I just like the fight scenes so far, but we have not even made it to the new stuff like wing, OO, Seed or anything like that.
I prefer dubs to be honest, but I am sure I am missing out by not watching the subs, and a lot of the times it looks funny when they talk or there mouth moves first before any sound.