There’s both a Hyatt Place and Hyatt House in the same building, the Hyatt Place Allentown / Lehigh Valley and Hyatt House Allentown / Lehigh Valley. They just opened last fall, and Hyatt.com even uses the Hyatt Place exterior for both properties.
They share amenities like gym, pool, and bar (there’s an indoor pool). Unless you need the long-term stay kitchen stuff of a Hyatt House, pick whichever one is cheaper. You’ll note that the property can even be a good use of Hyatt points, here’s a nice ~ 3 cent per point redemption scenario.