with a little experience one can achieve a really good master track with this. 
Clarity 
very versitile, covering all types of music from acoustic subtlety to pumping house master track it offers a a frequency palette i had never experienced. the presets ain't bad either. 
 pros 
has mid side chain and a filter limiter/compressor relationship that reduces subfrequency hum or subsequent lack of clarity in the mix. this is hard to achieve with other plugins. a crystal clear miiix in a few clicks. 
Ive also been using it as an instrument pos///preamp 
For electric guitar you can achieve almost any guitar sound. nice tube like warmth on a vocal, and nice round subtle/HEAVY bass compression even on a bass synth. matching frequency relationships is simple with this. 
cons 
took a while to be able to save presets, but easily rectified using the wave instructions. also gives cpu a good workout. 
comp 
this is very nice,,, downloadable pdf is very clear as how to operate. 
its actually a great learning tool : )