You can read review of that on Amazon. There are tons of reviews there you can read through before making your final decision. Read more than one review to make sure you make a good choice.
Consumer reviews for the Diamana shaft are available through many golf publications. However, going to the manufacturers website would be a good start with a general search to follow.
The best place to read reviews would be on a golf forum, that way you can see what consumer's who've actually used the product have to say about the quality.
