This seems to be the deal with Spectrasonics, great sounds, but high demand on RAM and CPU.Having said that, The C7 is beautiful, clear, resonant and not as bright as you would expect

amazing sounds

Great keyboard sounds, but the piano samples were not quite intimate enough for my solo piano project

Amazing sounds

Keyscape has the most realistic and organic sounds of them all in my experience, and they regularly inspire me to play more

The sounds are superb and the price for them, what a bargain