I played with the GPO not too long ago (friend of a friend). I didn't get to spend hours on it.., but it was enough time for me to decide that I had to have it I was catching on pretty quick to the articulation control. From what I remember GPO handled the articulations rather well. I think it has parameters such as Expression/Volume controlled by the mod wheel, Note Velocity controlling attacks and articulations, and I think you can set a pedal to control legato.

The guy who let me try his was a whiz on the application. He had no problem controlling the articulations. Sounded freaking good too. For $199 it's a darn good sounding orchestral set.

[This message has been edited by squeak_D (edited 05-30-2009).]