I purchased this product due to being on the go and needing to work but not having much suitcase space to play with. So I stopped by Guitar Center in Raleigh, NC  and the amazing sales guy showed me this controller in stock and I was immediately fell in love. It is responsive and portable. Usb powered so what else can you ask for. It also comes with an editor to push it even further to the limit..check it out… video coming soon……