I have published a review on Hahnemuhle FineArt Baryta Satin 300gr/m2.
Personally I like this paper!
Check this post in my blog:
http://wp.me/p4LKIu-uAThe post is in Dutch, but close to the end there is a link to an English version of the testreport ( a gesture to those that cannot read Dutch ;-)).
Included are 2 images on analysis of profiling result:
From images printed my conclusion is: It is a very nice Fine Art paper with a light texture in the surface so characteristic for Fine Art papers. The reproduction of colors is very fine indeed, the tone curve almost ideal. From the highlights down into the deep blacks the details remain very visible with a high detail-sharpness. The sense of depth or 3-dimensionality is very good. The paper white has a light creamy color, which adds a fine and subtle glow to the printed image.