A Cr48 showed up at my door several months ago, so here's my brief take.
This has become the most used computer in my house. It comes out of hibernation instantly, and it boots up from off in just a few seconds. As someone who only has time to access the Internet in short bursts, this is ideal.
This computer cannot replace a regular computer for storing pictures offline or running programs, but it kills a regular computer for accessing the Internet. Because it's a browser in a box, there is no waiting for the browser to load. It's always open. And because there are no additional programs, there is nothing to bog the system down and no routine maintenance to perform. Due to the machine's simplicity, the battery lasts forever.
If I manage to break this one, I will buy another.