Audio-Technica ATH-M40 X

I've bought this headphone nearly 2 years ago and have been using it on a daily basis, mostly while going to school or just listening to music (film scores, rock, classical music and funk most of the time and sometimes also jazz) at home. I am satisfied with this product so far.

Sound: The sound is great, considering the price. The bass and treble are very present, while it sort of lacks middle frequencies, but it's not that bad. The lack of mid range is noticeable but not bothering and doesn't worsen the listening experience much. The cans perform well across all the genres I listen to.

Comfort: The comfort (for me) is okay, but I've heard from friends and many reviewers that the earpads are not the best (hence the 3 stars, otherwise, considering only my experience it would 4), so you'll may consider buying some comfier ones instead. The pad on the top may look too thin, but let me assure you, it is comfortable enough during long sessions.

Quality: Although the plastic feels rather cheap, the build quality isn't actually that bad. I have seen much worse materials and design elements on various headphones over the years. One minus point: after a while the 3D folding mechanism started creak and squeak. I can live with it but still, some of you may find this annoying.

Design: Altough I can't give stars for this, I really like the folding mechanism because it makes the headphone so much practical for on-the-go usage (on the way to school/work etc.). If you are planning to use this on public transport (like I did)
I'd advise buying a hard case. I'd also like to mention that the passive noice cancelling does a good job, it is pleasure using it outside or on public transport.

To summarize very briefly: It is a decent, good sounding headphone for everyday usage. It does absolutely worth the price if you are looking for a practical closed-back headphone.