Question about Boss Super Shifter pedal

Hey all, I am a metal guitarist considering buying the Boss super shifter pedal but have not actually tried one out yet..I have heard samples of it online but to anyone who owns this pedal, how is it? What are some of the advantages it will create for a metal guitarist? Thanks a lot, take care!

Its kinda pricey for what you get and its not completley effective without the expression pedal you have to buy separatley...I would go for the digitech whammy..

The only reason I would consider getting one is if I somehow lost the ability to use my whammy bar or got just plain lazy,but if you have a tune-o-matic bridge on your axe,then it would be a great effect.