Change from mSD to eMMC?

Is it worth getting an eMMC instead of the CE mSD?
If so, do I need a specific brand or build or can just get any card?
Any meaning to the card capacity? I pretty much am going to only run CE on it. But maybe there is some buffering advantages to larger cards.

eMMC will be considerably faster than most SD cards out there.
You need to get the one Odroid sells.
16GB should be fine.