Shocked to see that this topic hasn't made its way on the forums, so I guess I'll start it then...
I think it's definitely one of the better games in the series, graphical upgrades aside... and the online lobbies are freaking hilarious. My brother brought over his copy of the game this past weekend, so he could convince me that I should pick the game up again, and I've been hooked ever since!
You make your online persona, and you're then taken to a lobby, where you can actually move your persona around, almost like PSN's home should be... for lack of a better explanation. The two of us followed two people around so much, we must have scared them away... you can make your persona slide down railings, break dance, sit in chairs, take a nap, etc. etc.
Check it out for yourself at:
www.hotshotsgolf.com