My partner and I arrived to the apartment after midnight (via Uber) and it was incredibly easy to get in and get settled. The pictures and other reviews are totally accurate--Hector's place is beautiful, comfortable, and very convenient! We really appreciated the filtered water, cervezas in the fridge, coffee, and fresh flowers. The decoration is stylish and made the apartment feel like home. Hector and Irena were great hosts and were very responsive to any questions that came up. They also provided recommendations for tasty local restaurants and bars. At the end of out trip, we had to leave very early in the morning (around 4:30am), but "check-out" (i.e. leaving your key on the desk) was seamless and went off without a hitch!
I would highly recommend this apartment and this neighborhood. We got everywhere we needed to go cheaply (via Uber or by foot), enjoyed a lot of nearby offerings, and felt very safe and comfortable throughout our stay.