On Dave's recommendation I also got this and I am very happy as well.  Nice!  Just note that only certain Soundiron instruments will go in the Kontakt Player and also be fully installed there so these libraries will appear on the main page of the player along with any other NI Player libraries you may have.
 
However for those that only have the player, many of their libraries require the full version of Kontakt.  Including the larger libraries that the micro libraries are compact versions of.  There is a section on their site that lists the player libraries only.