I'd say synth lovers will like Syntronik by IK Multimedia. I downloaded the free version. It sounds good. Then again, anything that Jordan touches sounds good. Overall, I like IK Multimedia stuff. Recently I purchased their Miroslav philharmonik 2. I had version 1. They all sound good for the price.

http://www.ikmultimedia.com/products/syntronik/index.php?pp=syntronik-video&v_id=_ABiP4_yea4