We stayed at the Fairfield Inn in Watertown one night on our drive from Maryland to Montreal. We usually stay at Marriott properties and I must say this was one of the nicest Marriott's we've ever stayed in, even taking into account that Fiarfield Inns are not Marriott's primier hotels. The hotel has been open for @ 7 months. The rooms are similar to Marriott Courtyard rooms. The bedding was plush and comfortable. Our room was immaculate and the staff were friendly, courteous and helpful.
Wi-fi is free and a nice breakfast is included. There's a fenced in patio with tables and chairs where you can sit out, have a drink and light up should you be so inclined.
I can't imagine there is a nicer hotel in Watertown. And the price was right!
It is back from the main roads & I-81 so the noise from traffic is non-existent. But there is easy access to I-81 North and South.