I've tried my 4 year old daughter's putter (granted, it's not a Scotty Cameron) and it feels very easy to line up and keep on line through the stroke, not sure how my back would feel after 20 or 30 minutes on the practice green though. I liked seeing the difference in putting styles between Robert Garrigus and Jonathan Byrd.
Last summer I played with a couple of guys using face forward putters. That looked pretty cool too, but I doubt that it would work for me any better than Robert Garrigus's short putter. I'm a little over 6' 1" and a 34" putter shaft feels just right to me.