Wow! This is all I can say about this hostel. I was nervous about staying at a hostel as I never had before. Generator is amazing. Perfect location to all of the great spots of Madrid. I was able to walk or take Metro (it rained a lot while I was there) anywhere I wanted. I was very pleasantly surprised at the cleanliness of the lobby, common areas, and room itself. My favorite thing about Generator is that it's a more "grown up" hostel. I'm a female in my mid-thirties traveling alone, so there were a couple nights where I wanted to party (Generator leads pub crawls and has events in the bar area some nights). There were other nights where I wanted a nice quiet early night. I stayed in a shared room. Everyone was so incredibly respectful. There were no crazy drunks or uncomfortable experiences. I was also lucky to have a room with one guy and 2 other women. I was also pleasantly surprised to see older people and even young families staying at Generator! So if you're looking for an outrageous party hostel, this might not be your place. But if you're looking for an awesome, easy, cheap place to stay that has great amenities, this is your place! The check in an out process was so easy. Staff were very nice.