I recently purchased this putter after playing with a center shaft mallet style putter (with an insert) for the past year. I have a lot better time lining up my shots, and seem to push/pull the ball off of alignment a lot less. I've taken at least 6 strokes off my scores in the past few rounds. Fewer 3-putts, due to making more shots from 10' or less.
The machined face seems to give me more consistant ball roll (for me). The grip has excellent feel to it...much better than my old Nike Putter. For $70... you can't go wrong.