K-271 MKII : Depends what you want.

These headphones are very good.

They have a neutral sound and make very decent monitors.

They plastic is light but durable and not cheap feeling. I've had headphones from other expensive brands with much more substantial plastics that broke over time. I'm pretty sure I could play football with these and not worry about them breaking (you can twist them into a ball).

The drivers aren't overly powerful so sound levels can be lower than some other headphone options and people will know what your listening to as they dont keep in all the sound. But that being said, They are loud enough for purpose, and dont leak as much as some other options from AKG. I know I will have these a very long time.

Pros

Durable, great sound. (neutral) Great for studio/home.

Cons

People will hear to a degree what you hear (so prob not best for public transport).