"in my ears" the Audyas Piano isnīt very good too.
But regarding Akai or whatever : Remember the COPYRIGHT of the owners ( of the sample library as well as of the manufacturer ) !
At least here in Germany this is definitely forbidden by law.
Thatīs one of the reasons, why e.g. ROLAND with their "V-Accordions" must not ( and so does not ) sample "HOHNER" Accordions. I would like to have that sounds in my FR-3x
( They bought "Dallapee" to be able to legally make and use the appropriate samples ! )