On the positive side: The place is well appointed and feels quite roomy for being a small studio,
The views are indeed spectacular, the wifi works great and the bathroom is older, like the rest of the building but works fine and has good water pressure as well as a tub.
On the negative side: It is a very old building, where the elevators do not always work. I had to walk up 10 flights of stairs one evening because of a power outage.
Another night, the elevator was stuck and banging loudly for hours.
The door is not well insulated for noise, so you can hear all of the doors banging as people come and go. During my stay of over 30 days, there was non stop construction for a solid 3 weeks. The banging in the early morning was quite unbearable. I was working in the tango world, and dancing late most nights. So this was very disruptive to my stay. If you leave the unit by 8:30 AM and don't have to be there to work during business hours, this would not be a problem. The weekends of course were also quite lovely as the workers did not show up.
Another positive!!: The unit is in an amazing neighborhood, with lots of restaurants and cafes to walk to. Having the Eco Parque as your view and front yard is a dream. You can even hear crickets and frogs in the evening.
Negative: The host essentially leaves you on your own after check in and is slow to respond to any requests. Thankfully the unit is well equipped; so for short term stays this may not be an issue.