Putters are a very personal thing. No specific putter is for beginner or pros, or anybody in between. Its what ever you like, feels good to you, and most of all, what looks good.
Ping has a long history of making great putters. So if its the right price and you like it, go for it.
For me, I prefer Scotty Cameron newport style putters. Anything else just doesn't work for me.
Yeah, putters are a very personal thing. That is why there are SO many choices. In the same store how many different drivers did you see? A putter has to sort of "look right" to you when you stand over the ball. I have a Scotty Newport II that I'm currently real partial to, but that doesn't mean it is right for you. For me, putting is about feel and confidence. If you pull out a putter you feel like you can sink putts with, you have a very good start. If you're real lucky, that Zing will be with you for years. If not, at least it isn't a real costly mistake.
i think the biggest thing with putters is finding out where you actually aim the face. this may or may not be where you think youre lining it up. i took my putter and lasered it and found out i was aiming it 6 inches to the right from 6 feet. looked square to me and lined up with the alignment line, but i wasnt. it all depends on your eye, and how you see the face. its different for everyone, and two people will aim the same putter in two different ways.