I was here for work related travel at the Convention Center. The Mayflower is a decent walk to the Convention Center, as well as to Pike's Market. It's an older style hotel--I'm not sure what parking is like. There is a doorman, I had to reset my brain to doorman-tipping. There are two restaurants, I didn't frequent them, but another visitor told me the food was good, but portions were very small.
I had a comfortable queen room. The location and pricing for this hotel was ideal for my budget, I will definitely try to stay here again. I also visited Target and H-Mart, both within walking distance. Seattle does have an active street community, some homeless, but there were no homeless individuals resting directly on the hotel property.