Digital BW, The Print

Anyone every try Hahnemuhle Structure?  It's a 150 gsm watercolor 
paper.  Just found a small box really cheap at a close-out at a local 
photo supply store and will try it on my 2200 printing BO with Eboni 
black.  

Also got some Photo Rag Duo.  Any difference from regular Photo Rag 
other than 2-sided coating?

Thanks

Richard