It's rare that How Would You Change takes a look at headphones, but we think this pair deserves the scrutiny. Parrot Zik by Starck is a $400 pair of Bluetooth cans with NFC, capacitive touch panels, active noise cancellation, head detection and a jawbone sensor for speech. Two of our reviewers put the headset through its paces and found that, sadly, a short battery life, wonky Bluetooth performance and so-so sound quality meant the set wasn't worth the $400 asking price. But what about you? Did you splash out the big bucks on these, and if so, how have you found 'em?