Pros: Extremely comfortable, looks awesome, very durable, excellent materials, mids are very good, highs are good, goes loud
Cons: Bass is severely lacking, horrible cable, cable may be short for some, bass distorts at extremely high volumes, very colored, price
I have owned the Bang And Olufsen A8s for around 5 months. I am very satisfied with this product in many ways. First of all, These earphones look and feel amazing. The materials used (rubber, brushed aluminum and plastic,) are fantastic. As well, these are probably the most comfortable earphones I have EVER used in my entire life. It's so comfortable, I do not feel anything when I am listening to them. I have not had a single problem with these earphones and are very durable.
The sound quality on these earphones is not amazing, but very good. The highs are crisp, and do not roll off. The mids are also amazing, and are very accurate. The only thing I am very disappointed with are the lows. The bass is severely lacking, and distort at very high volumes. Also, these earphones go loud, which is a great thing for people who want their music loud.
Even though these earphones are great, there are a few things that set these earphones from bring a 5 star. First of all, the cable is TERRIBLE, like the one you get with airplane earphones. Seriously, it's that bad. The cable may be short for some as well. As well, even though the sound is good, it is very colored, meaning that they make the music sound better than it really is. Another holdback is the price. At $160, these are very expensive for what you get. These should be worth $120 at max.
Overall, I recommend these to anybody who wants a great set of earphones with good sound, good comfort, good durability and good portability.