My family (three generations) stayed at the Chauncey for an event at Princeton University. My understanding is that it was not built as a hotel for the public, but as a private conference center for ETS (the company that administers the SAT and other tests) and it is accordingly located in the middle of ETS's enormous campus northwest of the university. It's an odd location for a hotel, not particularly close to anything. But it's just as convenient to the university as any of the Route 1 hotels and the openness and isolation of the ETS campus give it a much more peaceful atmosphere than the busy highway that is Route 1. They also have a complimentary shuttle van driven by a quite friendly guy that will take you places (or pick you up) with a little advanced notice.
The architecture of the place screams 70s. Our two rooms had slanted ceilings that created an inaccessible loft-like space above the bathrooms, and one had a funky wall with wooden slats between the door to the hallway and the bed area that made it opaque when viewed from the open door, but transparent once you stepped inside the room. But the rooms were average sized, the beds were comfortable (nothing special, but comfortable), and everything was completely clean. Our advance request for rooms next door to each other and a refrigerator in one were met.
I've stayed in the Hyatt, the Westin, the Nassau Inn and a couple of lower end Route 1 hotels over the years. Overall I'd say the Chauncey is distinguished in being the quietest, but I wouldn't say it is particularly distinguished in any other manner. On my next trip to Princeton, I'll have no hesitation about returning to the Chauncey if it again presents the best available value, but I won't seek it out over other alternatives if I can find a better deal elsewhere.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC