Honest review here. 3/5 stars.
First, the positive: Andres seems like a nice guy, the place is nice and big. It's generally a quiet area. All that's good.
Second, the negative: There were a range of days where there was no hot water. Andres was quick to respond to each of my messages about this (it happened about 3-4 times over the course of a month) and to come over and temporarily fix the faulty water heater, which was appreciated. However, I had a number of cold showers during my stay. Cold showers are great but I was paying around $2,000/month (i.e. plenty of money) and there's a certain point where some type of partial refund (even 10%) is nice to offer if a key amenity is repeatedly not working. Andres didn't offer this, which was frustrating, and told me finally that he'd get someone to look at the water heater... the same week I was leaving. That wasn't very helpful to me.
The other negative part were the many challenges surrounding the señora who came to clean the apartment every week. Andres told me at the outset that he'd coordinate with me the time when she would come. Great. However, this didn't happen -- no time was settled on -- and so the señora showed up one morning when I wasn't fully clothed and just walked in to the apartment. She has a key herself and she just opened the door. I politely asked her to come back in 10-15 minutes and she just walked in anyways. Just walked right past me. Maybe there was something lost in communication there but I speak Spanish, having lived in Latin America for many years. That said, I do want to give her the benefit of the doubt here so I'm happy to chalk this one off as a failure in communication.
After this, though, I asked Andres politely if we could nail down an exact time when she'd come to clean since I wanted to be in the house when she was there (since I don't know her personally and I have money + cell phones, etc, in the house). A time was nailed down (Thursday morning) and then this time was not stuck with, with the señora changing the days each time. Once, I was just leaving the apartment when the señora arrived to start cleaning; I asked her in a friendly way if she could please come back later when I was there as I had valuables, etc, in the house. She didn't respect that request.
Twice, she then came a second time in the afternoon -- just walked straight in without knocking, using her own key -- and started doing things in the kitchen. I asked her not to do this several times, and I tried to set boundaries around when I was comfortable with her coming and what I was comfortable with her doing. She largely ignored me on this, telling me that she was a "trustworthy person" and that I didn't need to worry.
This was all very strange to me. If the purpose of having someone clean the apartment is to be of use to this guest (and it's a nice gesture, I agree), then I would recommend coordinating carefully the relevant details with the guest and then respecting their wishes.
In summary, if these two highlighted issues can be nailed down, then I'd be happy to recommend this place as otherwise it's a nice spot.