Originally Posted by rbAA

There's also the Hyatt Reg McCormick Place, which if my memory serves me well today (I make no guarantees,) is connected to the convention center. The Marriott Marquis is a bit of a walk to the convention center, as it's a little farther north. That whole area is (or was) a wasteland, though Chinatown is within "walking" distance. Not sure if you're used to the cold, but I lived in Chicago for 20 years and it's cold in December, and the public transportation options consist of buses as the L doesn't go to McCormick Place. There is also the Metra though, I've never used it. There's a station at Millenium Park, so the CAA is close. Google Maps shows about 18 minutes to McCormick Place station. But the Loop is very dead at night.

So, unless you like to walk, a lot... About the farthest south I will walk is the Shedd Acquarium or Field Museum, but not at that time of year. Or taxi's/Ubers/Lyfts.

So, as MSPEconomist mentioned, it depends on your schedule and networking needs. I wouldn't stay in that area though, as you'll probably find yourself wanting to head up to the Loop or north Michigan area/Rush St, etc. Like I said, I like the PH.