Elton is a very cool host that will help you feel very comfortable on any of his flats.
Location is mesut to everything,restaurants, banks, museums, two theaters and one of the largest aquariums of latam.
Privacy is respected and good security at the building. Gym is correct, the pool is not that big as the host mentioned but I believe it is perfect to make you feellike king of Polanco. View to the Polanco's skyline.
Staying at Elton's flats you will only worry to keep having a good time.
Thanks Elton!