This is one really solid putter.
This putter is about the same as the 2-ball alignment putters. I really like the weight and design of the head. So far it feels like it gives me a better pendulum swinging motion while putting. This past weekend was the first day that I used it and I thought it did really well. I just need to practice with it some more to get a better 'feel' for judging the distance I will putt.
I have no complaints at all for this putter, yet.
After moving from my old blade putter to this mallet/alignment putter, I don't know why I didn't make this change sooner.