It is a nice hotel, free breakfast, and very close to the conference center. (If you need to get there, and don't love walking too long in the cold, this is a good choice, especially if you are on a budget, since the free breakfast and coffee in the morning makes a big difference.)
The one problem I had was that, as an international traveler with no US sim card, I was counting on connecting to WiFi with my phone, but in both this Hyatt and the other (Regency, very close by), the my phone couldn't connect (on my computer it did). I had no such problem at the airport or the conference center, so it is a Hyatt glitch of sorts.