Service: Boomerang has an excellent customer support. They were very flexible in regards to adding missing items and extending the stay.
Neighborhood: The neighborhood is quite loud and the window sound isolation is bad. It's okay to sleep with earplugs though. The financial district can be quite depressive at times due to the lack of natural light.
Amenities: The doormen were very friendly and professional.
Overall, I can recommend to stay here but would recommend another district than the finical district for long-term stays.