My husband and I stayed for a weekend. We were allowed to drop our bags off early. This was great so we could explore Seattle without luggage. If you are used/can't live without A/C this place doesn't have it(majority of Seattle doesn't) Portable fan worked wonders and kept us cool.
My husband and I loved being centrally located in the city. It beats staying at a hotel without all the amenities this place has to offer. We were able to walk to Pike market, the Space needle, Etc and there are numerous restaurants, bars and diners to choice to eat from.
If you prefer a quieter sleeping environment, I'd recommend getting ear plugs and a mask. The light rail runs in front of the building. My husband and I are used to city sounds so it didn't bother us.
The only thing that could have made this even better was to have a working washer/dryer (it was disclosed before booking so no surprises)