I wish GPO4 (which I actually like a lot when using Sibelius and Finale) would include more staccato samples. I know there's some programming to shorten the sounds but it's not the same as an actual staccato or staccatisimo sample. The flutes have it but the rest of the winds don't nor do the brass.
Just a small request. Aside from that, it's a killer library for $150.