Sofia's place was great! I stayed here for about 2 weeks with my sister. The unit is on the ground floor and there are other folks in the building but it's pretty quiet. You can occasionally hear the staff in the hallway near the entrance, but it didn't distract us or interrupt our sleep at all. The private terrace is fully enclosed, but you do get some fresh air there. The shower and sinks get fantastic hot water really quickly. It was great to be able to access the washer and dryer on the roof to do some much needed laundry.
Sofia and Lucero were very responsive to messages and their staff was quick to fix the few issues we had during our stay.
The location is great! You're close enough to great bars, restaurants, and cafes without being right in the middle of the busy mix. The staff is amazing, especially the security who opened and closed the building doors each time we left.
The wifi can be spotty, but we really loved these 3 nearby work-friendly cafes: Chapul, Blend Station, Niddo.
Recommendations within a 5ish minute walk:
Chimex for great Korean fried chicken, Chuan Bai Wei for hot pot (cash only), Apuntes for cute stationary and pens, Estado Natural for organic snacks and soaps, Esparanza for gelato.