I loved that too but the dt250-250 is even better

I've used the dt150 for a long time for work, but not for what I'd say are hi fi reasons.

For a working situation,

a) they are really tough and can safely be sat on.
b) sound is reasonable. Bass heavy and a little dull on the top, but great for playback at loud volume if you're playing along and putting another track down. I hate trying to record tracks at mini volume since you lose all sense of 'live'. They play loud without pain.
c) cable comes off so if you break it no problem. Also, you can leave the screw out so it'll pull off under stress.
d) big space for big ears.
e) everything is modular and can be changed.

It's just not waterproof!!!

For music, home listening, I do prefer the dt250 or dt990 tbh. Sometimes the dt770 which the BBC in the UK seem to like. (Cost)

My dt150s are normally quite heavily eq'd for work and hearing them straight, at home was a surprisingly different experience.