The studio was very clean, comfy, and well heated. It is very accesible with public transportation (nearest Pink line station 10 minutes away on foot). Both airports as well downtown can be reached with the metro and/or buses. It was very easy to find and the instructions for checking-in were very clear!
Salvador was very reactive whether for restaurant recommendations or for problems that we had. The toilet clogged a couple of times but we were able to solve it with the plunger at our disposal and Salvador responded right away when we contacted him and was ready to assist us in case we needed further help.
The wifi could be slow at times but we were out visting Chicago for most of the time. It could also get noisy but it's probably just the building and it didn't bother us so much.
Overall we had a really good stay at Salvador's place!