On Friday evening we spent the night at the Fairfield Inn adjacent to the King of Prussia shopping mall. We have stayed there previously. This was another good experience. The hotel was reasonably priced. The front desk staff was friendly. The hotel is located across the parking lot for the mall, although logically you drive.
Breakfast was one of the best hotel breakfasts we have enjoyed. The eggs were moist and tasty. The port sauces were excellent. There was plenty of selection and the quality of the food was excellent.
There is ample parking. As a bonus, Costco is right behind the hotel. The parking areas appear to be adjacent.
We would return.