Had this drive about a week now, works perfectly with both my iMac27" and my Win7 laptop. Install was quick, simply plug & play. Haven't noticed any difference while playing blu-ray between USB2 or USB3, picture is smooth. It's quiet too, hardly notice it.
Nothing environmentally friendly about this. I've had this now for 9-months, the life of the battery is down to 15%. I'm going back to a pair of AA rechargeables as they're cheaper to replace and last significant longer.