I think the plus for MP2 is if that it can be used in Sampletank, at least I think so. Agree there are probably better options out there now but for the simple type of stuff I do it fits my needs at the moment. GPO is a nice small footprint for building your own orchestra mock ups to learn orchestration. The community college in the area used it for a class over 12 years ago along with Finale. I wanted to take the course but at the time it conflicted with my work schedule