Pau Ferro is unbelievably beautiful wood.  Harder, Denser than  Red Oak
http://www.wood-database.com/lumber-identification/hardwoods/pau-ferro/
I however developed a sensitivity  to it after a belt sander was shooting the dust into my belly button.
Pretty Oily.  Oil based Minwax polyurethane would not cure on top of it.  Had to use water based Poly.
I had no issues with titebond2 adhering to it, but others report gluing failure.  I guess it depends on exactly how Oily any particular Piece of wood is.