So I've used the starter putter since the beginning, and today finally decided to purchase a new putter: the Odyssey Versa #1.
Wow, what a difference it makes!
Not trying to brag or anything like that, but here's the first two rounds from using it:
Eagle at #14 = 39ft putt.
I must say, it seems the best club I've bought so far. Even though it's just 2 rounds, it's so much more accurate and easier to hit the ding. Also gives a bit more confidence for approach shots, knowing there's still a chance of holing a 15-25ft putt should it not go to plan.
You've probably all heard this before. But for any newcomer to the game, I'd certainly recommend buying a new putter as a priority. Don't putt up with the starter! :-)