I bought these headphones for use "office" so as not to disturb others with my music.
The level the result is quite satisfactory for such non-attentive listening. It's quite a headphone "neutral" in the sense that I did not feel too often missing or of too marked. The bass are likely to be somewhat limited in the lower frequencies.
I would say the main flaw is ergonomic: the cable is very long and rather large and rigid, which is not practical at all. Mobile use in mind. Be careful not to turn up the volume too, the neighbors quickly take advantage of the sound that comes out.
The plastic finish is a good quality. The atria are turning, convenient to place it on a desk.
In the end, I give it a 7. A good headphone, but fishing on the practical details to qualify for better.