Summary: You pay a little more for LaCie, but you get what you pay for. Historically, i've used 6 different external hard drives of varying brand, and my old Lacie is the only one with no problems (they pay particular attention to connections, which are sturdy and don't loosen--i've never had to change the case, which has taken a beating and been used frequently). The Rikiki is compact.
Pros: Attractive Design, Compact, Easy To Setup, Quiet
Summary: the product is good, the HDD size was small percentage smaller that advertised, which is not so small when you consider its meant to be a terabyte. however it was cheap, and nothing you probably won't find in any other HDD product. Hand held and lightweight, it looks al right too. However the stiff, short cable attached is cumbersome and not very helpful at all. I use a spare usb lead i had already to plug it into my computer. So, i give it a 3.5/5.
Summary: I've had this now for two months and it does the job. Using it to back up my Mac (time machine device) and there have been a few times when it has needed to be repaired, but overall, 98% of the time it's a brilliant hard drive. That's why it only gets 4 stars.
Summary: I have this working perfectly with my 2011 iMac at work and it sits plugged in backing up as I go along. It used to work fine with my mid-2010 Macbook Pro but recently I've noticed it saps the power from my Macbook causing it to go to sleep even though it's plugged in to a power outlet. Once I remove the external hard drive, my MBP wakes up and goes back to normal as if nothing happened.