Pros: Lightweight,comfortable,great sound quality,rugged enough
This is my 1st pair of nice headphones, so I do not have anything to compare them to. I enjoy the sound of them tremendously paired with my (also 1st) amp, currently a CKKIII. At this time, my initial setup for my 1st chain goes like this: PC>Foobar2000(FLAC)>WASAPI>Nuforce uDAC>CKKIII>Sennheiser 580. I think the setup works well and I enjoy the beginner's system at the budget price total of only $370 for everything.
Do yourself a favor and instead of joining Head-fi just to ask "What amp/phones/DAC should I buy?" on your 1st post, educate yourself as to what is out there, what music you plan on playing mostly, and what prices to expect for what you are interested in buying, you will be able to jump on a good deal when you see it for sale here or on Ebay or another audio site (i.e. Audiogon).
Knowledge is power, so empower youself and make smart decisions!