I stayed at Warwick Seattle recently for 4 days/5 nights. The hotel is located in a good location within walking distance to many of the sites that we wanted to see, and I felt that the hotel room/lobby was clean and well maintained. Some of the reviews I read mentioned that the rooms smell- there was a bleach smell when we first arrived but it went away quickly.
The main downside for us were 2 things- the shower head was mounted low so that my partner who is 5'10 had to duck to wash his hair. I also had my makeup foundation go missing after room cleaning. This surprised me because I've never had something taken while traveling before. Otherwise the stay was fine.