I had to spend a month in Hunt Valley, and the project coordinator put us up in the Hunt Valley Residence Inn. It was a great choice. The lobby and rooms were immaculate. There was an inviting atmosphere with a fire inside and outside. The staff was terrific. They were all friendly, helpful and knowledgeable.
The breakfast was more than the typical continental breakfast, and always included some form of potatoes, eggs, and breakfast meat. I did not take advantage of the social hour on M-T-W, but it looked like it was a good thing.
It is located right on the light rail system, so you can get to downtown Baltimore easily. There is the Hunt Valley Towne Center in walking distance, with plenty of shopping and dining options. I would definitely stay here again.