Niiiiiice, heavy trap sound. I was looking at that wave shape expecting something to come out of the blue but I was still surprised when that sub bass kicked in. I loved the instrumentation in this. Doesn't get boring, you could have dragged it out somehow. Maybe a longer intro, a choir synth, or a string section on that end? I like to cheat with tempo changes when I want another 15 seconds out of a track. Ten seconds short of three minutes? Time to drop the BPM from 180 to 172 and fade out ;)