Fremont Marriott is GREAT
I used to stay at the Fremont Marriott about 1wk/month when I was working for an east bay company. The staff was in the top 10% of all the Marriotts I stayed at. Rooms were very reasonable. Dining choices were unbeatable - any cuisine within about 10 minutes, cheap to luxe. Free parking. A real bonus was the great bike paths in the area.
Don't know what you expect, but I'd go back there if I needed to work in the 880 area again.