New England Sheratons, to paint with not too wide of a brush, are generally trash. Many of them were introduced from "Tara" properties back in the early 90s and are the worst. A subset used to be "Sheraton Inn" properties that should have become 4P but did not for whatever reason. Providence Airport comes to mind here.
Regardless of their heritage, the Sheraton name in New England generally implies potentially serious faults, except for the Sheraton in the Prudential Center in Boston.