I stayed in this apartment with 4 friends. We found it to be very clean, bright, and conveniently located. I never met Roxana but Christian was very nice and friendly. He helped us with suggestions and ideas. The apartment building is new and located only 1/2 block from Linea 1 station, Manuel Montt. The beds were comfortable and we loved the Ipod docking speakers.
The rooftop pool area wasn't as clean as shown in the photos but still had beautiful views and was a great location for a glass of wine as the sun set. The apartment photos make it look a LOT bigger than it really is. I wouldn't recommend it for more than 2-3 people unless you like being cozy with your friends.