Pros: Wonderful bass, super transparent, good and accurate soundstage and detailed, adjustable-angle nozzle, couldnt be better build and p/p
Cons: harsh treble, lack of the hight-mids, a little uncomfortable to long-term wear(angular shape) , a little boring
Update on my 2nd time purchasing the GR07 in March 2013..
...more about the GR07: warm mids
Sound: 8/10 (compared to the best iems i have ever had was W4 and Ex1000 10/10)