Would you recommend me the Sennheiser HD 598?

i would go with a pair of audiotechnica ath-m50s instead. (your choice of black, red or white)

why?

1) hd598 isnt sound isolating. while not completely sound isolating the m50s will close you off from the outside world more. the drawback is that you may need to take them off for a few minutes every few hours (since they get a bit hot). sound isolating headphones will generally sound better.

2)the hd598 is 50ohm while the m50s are 38ohm. just about anything from a pc, phone to mp3 player can drive the m50s without trouble. i'm not sure about the sennheisers but you might get a little bit less volume out of them at the very least if on a mobile device.

3) the hd598 uses a half plastic "adapter" piece to convert from 1/4" to 3.5mm. the m50 uses a screw off design which is all metal. this means that there would be a long extension sticking out the back of your pc (or front) using the hd598 but not with the m50s. having something like this means its easier to bump and perhaps break off or damage your port. the m50s end is also a bit higher quality.

4) the hd598 is more costly than the m50s but is in the same general performance category (people compare the m50s to headphones up to $250 despite that you can get them for $99 in some places new.

5) the hd598 (and sennheisers in general) lack substantial bass output. the m50s provide a decent kick on the low end without becoming overpowering. the hd598 is known for in general good quality minus a low bass output. for games, uprising theme music and battles you will want decent bass output.

6) the m50s fold up and fit in a nice little leather bag. i dont think the sennheisers do.