This hotel is in a good area-- several restaurants within walking distance (shares parking lot with Longhorn, Red Robin, and IHOP, there's a Rite Aid across parking lot, and other restaurants across roadway including fast food-- Chick Fil-A).
Staff helpful, single serve cereal, fruits, pre-packaged/refrigerated sausage biscuits for breakfast but they DO have a waffle maker.
Reduced rating by 1 star as the beddings for the pull-out sofa seemed not to have been changed from previous customer-- there were two strands of long hair in same and the pillow seemed to be used. Had the kids use a pillow off the king bed and cover with the blankets.
I'm giving the hotel cleaning staff the benefit of the doubt and figuring that whoever used the pull-out sofa beforehand re-packed the beddings/staff was unaware.
Fairfield is usually lower on the Marriott totem pole to Residence Inn, but this hotel is in a much better area and have a better "feel" than the other hotels in Gaithersburg (in my view).
ENJOY!

I stay here at least 2x per month on business and the staff is great. Paul always greets me with a smile, welcome back and we have your room on the 2nd floor ready...even remembering that I like points.

After 4 days without power, I was ready for some air conditioning. Staff was friendly & efficient.
For less than $100, my wife & I got a good night's sleep and a decent breakfast. Swimming pool was the size of a postage stamp, and someone at headquarters needs to figure out a way to recycle more of the breakfast waste. Without asking, got a room with a view of Sugarloaf Mountain.

We stay here frequently while visiting nearby family and have never been disappointed. The hotel is, as others have said, the budget Marriott, but that doesn't really do it justice. Everything you need is here, it's clean and comfortable, and the staff is outstanding. In particular the front desk staff us always gracious and helpful, and Paul remembers the guests by name. In fact, this trip he asked about my nephew who was with me on my last stay over a month ago. There are restaurants adjacent to the Fairfield and more restaurants and shopswithin a very short distance . I would recommend this hotel to anybody without reservation ( pun intended).