The design of the device itself and the remote control is a matter of taste. :) I personally think it's not so hot but with the unit count for me the inner values and these are m. E. outstanding. Although some users will find (perceived) weaknesses repeatedly, so is m. E. in the price range no device that has more to offer on the market.
Very good I think the regular firmware updates that bring more and more improvements, such as the recent "Car Frame Rate" function. Here you have as a user the feeling that the customer will continue to be managed, unlike many other "One Night Stand" -producers.
I'm looking forward to the sequel, hopefully with faster LAN interface, N-wireless and advanced surface (similar to the Live Hub).
Update per 15/03/2012:
After almost a year, I'm still satisfied with the device. However, I have now deducted a star. Why? Lately I've noticed stuttering in footage repeatedly. After a long search, I have found that the car frame function not (more) work and my TV, the 24p playback controls, no 24p are leaked, resulting in stuttering. On the internet I have read in various forums that since the firmware 1.05.XX this feature stops working, for whatever reason. Therefore, I have played back the firmware on 1.04.XX and then it went again. Dear WD team, why pray tell is no longer in the last two firmware updates the Auto Frame feature? This is an important feature! For this Veschlechterung of Service, I regret to deduct a point.