Sounds are not the issue, as OAS 7 uses both the Hypersonic sound engine, (All the new voices) and the Creamware scope system for the rest.

Styles, well as has been said in the reviews, the OAS style engine is about 9 years old (Yes there have been improvements during that time, but none that make a major difference in sound) consequently you will need to hear the OAA (Which is a totally new system) to know what Wersi modern styles sound like.

Point to note, if you listen to any of the professional artists (The ones that play the instruments from local pubs to shows, concert halls and football stadiums) then up until recently (Now the OAA is more established) all of them used there own sequences or setups rather then the OAS styles.

BTW all the Real drum styles use audio loops for the drums, not drum kits.

Regards

Bill