I took an Id Pi (serial #1) home this weekend to use instead of my NUC based Id. The results were amazing.
I plugged it in and let it dangle behind the TV:
Here's what I wrote to Bob:
"The Id Pi has been a big success here. The lights were working in about 5 minutes. Just worked. Nice going! i'm playing audio with it now. No problems. I'm also transferring 50GB of music to it while I'm playing. No dropouts at all."
The one I tested had a 128GB microSD card, and it had about 120GB open. The music I transferred represented about 200 CD's worth and used only about half the space.
The time to boot and the responsiveness were both good.