I just bought an iPod Hi-Fi yesterday and I'm amazed by it. I wasn't too crazy about the design at first but it's 100 times better in person. Really looks sharp and it's extremely well made. The sound is superb at low and high volumes. I have a big apartment and it fills up the entire place.
I love how I can control it with a remote which works very well. I do have one problem with it though. There is no way to navigate through the iPod using the remote. You can change the volume, skip songs, rewind, fast forward but you cant go back and pick a different album or playlist. You have to do it on the iPod itself.
Seems weird to me that you can do pretty much everything through the remote but no navigation.