The flat is really nice on the 28th floor with great views to the mountais, I wish I was there on another season of the year!
When I was in Santiago the weather was extremally hot and it wasn't different at the flat. There was only one air conditionair ( master room) and nothing else at the single room and front room . After my second night at the flat I went to the shopping center to buy a fan to make things bearable because it was really hot!
In my opinion this was the only "downside" of the flat, the host should provide at least one or two fan to help make the guests more confortable during summer.
The location was good, the swimming pool was great ( You will need a swimming cap to use the pool) . Easy check in and check out.