It was ODD. You had to check in at another hotel .6 miles away, there was no staff on site, the complementary breakfast was also at the other site. Not a huge problem if you had transportation, but a bigger one if you came in by train, as I did.
The rooms were large and clean(ish) but worn, great beds, nice linens, and it was quiet. My biggest complaint was that the very bright outside lights were so bright and shown through the windows in the door, with no way to block the light. Avoid Room 5 for this reason.
In fairness, the staff (Kyle) at Beekman Arms, the other hotel, were lovely and helpful and deserve high praise.