I visited Moscow three times and I always stay at St. Regis. Thanks to the lovely Inna Vladimirovna who made our whole journey complete. Ms Inna and her team are very professional and helpful. The hotel is very nice, clean and within a short distance to most attractions.
I highly recommend to stay at this hotel and if you think it's going to be a hard task, ask Inna and her team and you will get a movie start treatment.