We almost booked there (but ended up deciding to book the Doubletree at DTD).
We did that because while the embassy suites does have frequent shuttles, we didn't like that the only option we had for taking a break in the afternoon was a 12:45 shuttle back from the MK (and then nothing else until 6:00).
Here's the website for the shuttle schedule that they gave me when I called to ask:
shoot -- it won't let me post links since I don't have enough posts -- anyway the site is platinumtrans.net