After reading positive reviews on other sites, this was a huge disappointment!
First, there was a mouse in my room my first night! They moved me to a smaller room, that was non-smoking (though my booking was for a smoking room). No upgrade, no discount, barely apologetic!
The service was overall just ok. Though the rooms were big, the design was just ok and the rooms felt dingy. The featherbed on the first night had scratchy feathers poking through worn sheets. Took two calls to the front desk to get slippers. My phone line was "blocked" for the first hour of my stay. Internet cost $24 for two days.
Stay at the Benjamin, which is similarly priced but has comfortably sized, clean, well appointed rooms, decent desk for working, great service, and very comfortable beds! I chose the Muse on the recommendation of a travel agent, and because it was fairly close to the Javitts center, but wish I'd gone to the Benjamin, which is my usual business hotel.