I just got my pair, and I can say that it was well worth the money I paid for it. I have a homemade discrete amp to drive them which makes everything sound brilliant. Of course, that's what is needed to drive the 250 Ohm versions but I guess a portable amp will just barely do the trick.
 
For the price, I would say that these cans are worth the money as they have a pretty astounding soundstage for closed-back after I compared them to a pair of Sennheiser HD 650s that my friend has. In addition, the build quality is superb and it seems that they can withstand a couple of kicks or drops in their lifetime. 
 
Good if you're a starting audiophile like me, well worth the money in both terms of sound and build quality.