In a nutshell, this is a smooth trap track. As he said himself, the video is probably the most pleasant epileptic experience you're going to have, so share it with your parents. (Or not.)
Sweater Beats is Antonio Cuna, a DJ affiliated with the Huh, What and Where crew who was recently picked up by Bondax's label Just Us. He makes music "to make your booty bounce" and has been putting out some great soulful tracks featuring awesome samples. You can find out more about him on theHW&W websiteand purchase this track on iTunes.