The key with this device is knowing its limitations. I required a device to play from a USB device AVI files - it does just this!
If you want HD or surround sound, this is not for you.
If you want to stream files, this is not for you.
If you want to simply plug in a USB device and play any number of AVIs, MP3s or JPGs on your TV, this is ideal. It's compact, fast and makes watching downloaded TV series so easy to do!
I make my life easier by using a free backup application to synchronise the files from my PC onto a 120GB USB hard drive. I also wrote an application that allows to mark files are watched so that the backup application does NOT copy previously seen files across (useful for TV series).