Groovy
Not bad, not bad at all, the only thing is that this songs seems unfinished. It could be an awesome base for a sweet semi-intensive drum'n'bass song, but it desperately needs more synth, beat, and most importantly, bass to cover up the "empty" parts - d'n'b should have as little of those as possible, it's supposed to keep you in tension during the whole song (at least in my book).