The Drury Plaza is about 15 minute walk from the convention center along the street level. It might take a bit longer by the riverwalk. My room (14th floor of the Alamo tower) was very clean with a comfortable bed and nice bathroom. The hot breakfast (scrambled eggs, pancakes, oatmeal) were wonderful each morning and the staff were very courteous and friendly. I didn't use all the perks (free wi-fi, free hour of phone calls, pool, fitness center), but I will try next time I travel to San Antonio.