First, the perspective on the ball is way off! Looks like you are hitting a softball when it gets out to 100 yards or so!
Next, that damned doorbell when you get a sponsor pack! Get rid of it! It was interesting the first few times I heard it but now it just makes me want to mute all sounds!
Unpredictability of missing the "ding". This is EXTREMELY annoying! I barely miss the ding and my shot is almost 10 degrees off the line with no wind! Then I miss it by half the meter and I'm almost lined up on my shot!
Finally, the stupidity of the animations at the completion of a game. Yeah, I know I lost the CTTH tiebreaker by 0.1 feet! But I don't need to see if scroll up, then have to click "skip" five times on the points tally, then click on the "continue" at the end. All while waiting on the animations to load and play. You'd think that there would be a way to bypass all that nonsense.
There is great potential to the game, but the Flash version still plays the best out of all them. Get closer to that level of perfection and I'll start spending money again.