This apartment is located in the absolute best location with regard to being centralized to all the amazing things Madrid has to offer. Literally everywhere is a comfortable walking distance from the apartment. Also, as a woman who stayed there alone, I found it to be a very safe neighborhood and was not concerned with crime at all. Additionally, the host(s) are very friendly and responsive to communications, even offering to arrange a car to/from the airport for me. The driver they arranged was standing there with a sign as soon as I got out of baggage claim. It was great. Being that this was my first time in Madrid, I really appreciated that. There are so many fantastic restaurants nearby and the host even provided recommendations for some of them, which I really liked. The person who greeted me at the apartment was super friendly and sweet and it was a great start to my vacation. The self check-out was super easy too.

On the flip side, I had a consistent issue with the electricity intermittently going out the entire time I was there. The first morning I woke up to no electricity even though nothing was plugged in (other than the major appliances which I didn't feel comfortable unplugging - like the refrigerator or the washing machine which would require me pulling the machine out from under the counter which I didn't feel comfortable doing), the air conditioner wasn't on, the washer wasn't "on" (just plugged in), the blowdryer wasn't on, and not one light was on either. I was so confused. After seeing that the building hallway had electricity, I realized it was something specific to the apartment, located the circuit breaker, and saw that one of the switches had tripped. I turned it back on. Great! But not great, because it kept happening. There was no rhyme or reason to it. It would happen morning, noon, or night - it would happen when I had one light on or no lights on. It would happen if I was in the apartment or even when I was not (and I always made sure to turn everything but the major appliances off and unplugged before I left). Sometimes it would be totally fine and then others it would just keep turning off. On my last night, the circuit breaker tripped while I was in the shower, leaving me in the pitch black since it was at night. I advised the host of this situation and was advised that this was not a common occurrence and occurs when the system is overloaded. I was also told to unplug everything again, which didn't help prevent it from happening again. I agree that this sort of thing usually happens when the electrical system is overloaded, but how do you explain it happening when nothing is on? Unless the electricity is somehow connected to another apartment or is influenced by another factor, I am at a loss as to why it kept occurring. In fact, a few times it happened while I was lying in the dark and I heard the circuit switch loudly CLICK down and the hum of the refrigerator would stop. When I went to switch it back on, it would immediately flip back down. Over and over. Finally it would stay on. This obviously concerned me from an electrical fire safety standpoint. These circuit breakers trip to avoid an electrical fire so fighting against it made me very nervous. This sort of thing has only happened at my apartment in my home country when I have a blowdryer on, the A/C is on, the oven is running, and all the lights are on. That was NOT remotely the case here. This was happening with just the bathroom light on, or no lights at all. I never even used the blowdryer or the oven the entire time I was there. The apartment is not super hot so I rarely had the A/C on. I never had more than one charger plugged in at a time, and always removed the plug from the outlet once my phone was charged. The apartment should be equipped to handle basic electricity requirements and hopefully this issue will be resolved by the time the next Airbnb'er gets there as the host has been advised. But due to my concerns with a possible electrical fire due to the sheer quantity of circuit trips that kept happening, I felt uncomfortable even having two lights on at the same time. I was pretty upset about this as but I knew there was virtually no solution while I was there since unplugging everything doesn't help when everything (but the major appliances that I could not unplug) were already unplugged when it happened. This was something an electrician needs to properly investigate and hopefully this part will be entirely irrelevant to future Airbnbs. I'm writing it solely in case it is.
Lastly, the apartment is situated directly next to a karaoke bar and you can absolutely hear them screaming into a microphone and the songs they are singing until 3 a.m. The only air conditioner/heater is on the other side of the apartment in the living room so if you wanted to cool/heat the bedroom, you have to keep the bedroom door open. But if you keep the bedroom door open, then you can hear the karaoke place. A fan would have helped, but there was no fan. I will admit I am sensitive to noise and it's not so loud that no one would be able to sleep. So if you're a heavy sleeper, this shouldn't be an issue.