Pretty Nice, Yo
I dig this a lot. It's really evil and thrashy sounding. I believe the comparison to Testament is a fairly accurate one. It's definitely a good embodiment of all things metal. Without vocals, it seems a little long, but you know haha.
Also, the solo doesn't seem to fit well for me. It clashes a little too much with the backing track. Maybe it's just a mixing thing.
Well, I know my review is fairly rambling and incoherent, but overall, very nice song, sir. I'd love to hear some vocals put over this. Keep up the good work.