Installation is a bit long from two dvd, but here is well ... For the key (iLok) is a bit more tedious and follow the directions on the publisher's website (EWQL) and there arrive.Sur my Imac no installation problem.
Imac 10.8 3.2 Ghz + external soundcard Presonus Audiobox. Cà works perfectly and it sounds especially beautifully (the flamenco guitars are to die for ...). Not much lag either.
I just have, it will take me some time to appreciate all the subtleties, but I'm really amazed by the quality acoustic guitars ..
The interface is beautiful and easy to access.
The +: Sound quality - stability - ease of use
The -: the installation of Ilok key (sprained brain ...)
Yes definitely I am not disappointed with my purchase (especially with the 50% discount ... for € 300, it's expensive even if it's worth it)