Ownership: 1 month (used every day)
Great headphones, especially for working out/running or eliminating distractive noises around you.

Sound Quality - Very very good. I gave 4 stars only because of "cord noise". When I'm running I have to put the cord in my shirt so it doesn't jiggle around so much and make noise. When used while working out at the gym or using my laptop, you don't notice it. High highs, great mids, awesome bass. What you'd expect from Klipsch. Also has great sound isolation. Can't hear anything else going on around me. Great for avoiding distractions and just focusing on the projects I'm working on.

Durability - surprisingly good build quality. Cord rarely tangles. Has reinforced connections. Remote is sturdy. Earpiece tips appear to be of silicon - seem like they'll last for years. After constant use every day for one month, they appear just as they did when new.

Comfort - Most comfortable headphones I've ever owned. Period. Fit perfectly in my ears and I can wear for hours (unlike the stock iPhone4 earbuds that kill my ears after 30 minutes).

All in all, I would highly recommend. They're a little pricey at $99.99, especially since you can get them w/o the mic and remote for $20 less, but well worth it. (I LOVE the voice commands while running). Very satisfied.