The place is as advertised, it's clean, quiet. It feels safe for solo and female travellers - as there is a security desk and the building feels secure. We were two in the apartment and felt at ease.
The beds are really comfortable.
It is super well located, plenty of restaurants, bars and places to eat. It is less than two minutes away from the 501 line, which is really convenient.
I had seen comments about the temporary key, it is actually pretty simple to get in and out with it (and it is well explained). But if you are tech adverse or feel uncomfortable with that kind of key, it can be a bit stressful.
Would recommend the stay.