Comfortable, clean place! We enjoyed the neighborhood. Nearby food options were good, we had tasty meals at Perihelion Brewery and the no-frills Carnitas Michoacan (try the tongue tacos!).
The five minute walk to the light rail was nice for our downtown excursions.
(If you are attending an event at one of stadiums in SoDo, I suggest that after the event, do yourself a favor and walk north to the Chinatown station. Otherwise, you will be dealing with more of the crowd on your way out and waiting a lot longer to get on the train back to Beacon Hill.)
My only complaint was the lack of air conditioning, which you will probably not need. It was early August and nintety-plus degrees outside during our stay. A little warm, but there were fans which was nice.