Pros: Bass, Reliability, Comfort, Ear Seal (isolation)
Purchased from futureshop 3 years ago, (futureshop doesn't even exist anymore), they literally outlasted the store.
I bought these for 15$ , and at the time i was really into bass. I thoroughly enjoyed the bass on these for comparison i'd say they have the sound signature / quality of Dre-Beats but at 15$. Used em for the first two years of university, until water damaged the mic. Even then they were still great working headphones, but i needed a mic.
The other two headphones that i have used extensively and can compare these too are the:
Monoprice 8323 Over Ear headphone , and the MEE M9P headphone. These are better than my current M9P headphone on just comfort alone, but thats subjective. Soundwise the M9P is probably better but the stiff plastic cord i cant deal with, and also the M9ps started to get quieter in one ear after 10 months. (i use an equalizer to fix this).
Buy these for around 20$ , they will last and you wont regret it.