After doing a lot of research for what monitor headphones to buy around the 100-150€ price range, I narrowed it down to these or the Beyerdynamic DT-770 Pro.
I chose these mostly for the practicality: they are very portable, since you can collapse them, and the cables are removable and exchangeable (two characteristics that the Beyerdynamics do not have).
Having also tried the Beyerdynamics, I can say that these two pairs of headphones are different, but neither is necessarily better. As monitor headphones, they both do an excellent job, and I would say that they are the two best choices in this price range.
The only thing about the Audio-Technicas that I do not rate at 5 stars is the comfort. They are not uncomfortable - in fact, they are very comfortable to wear for the first 30 minutes to an hour. But, after long periods of time wearing them, the band does start do hurt my head, and I find myself having to shift the headphones back and forth so as to change the placing of the band. Keep in mind, this only happens when I wear them for long periods of time, and even then, I think very few headphones would be better in this regard. However, the Beyerdynamics do have a reputation for being the most comfortable headphones out there, so I think they might win in this aspect (although I don't actually have experience wearing the Beyerdynamics for long periods of time).
So, if you value the collapsibility and cable-exchangeability of the Audio-Technicas, choose these. If you value the apparently unbeatable comfort of the Beyerdynamics, chose them.
Hope this review helped!