Simply amazing... it's got all the essentials that make it so good, just the right amount of bass, percussion, synth, melody, and what not. A tad short, but that's good in a way, it makes u want more and it doesn't get repetitive. I find it more of a Techno song than a Dance song tho :D. And what did u say 7 hours? Genius, now i crave for more F-777, like A LOT MORE.
I think u really got loads of talent, keep it up, you'll be huge! i just know it!
Read this, and be inspired to make MORE :U