This was my very first solo trip and first time in Mexico. I didn't know anything much about the location or the hostel, but it turned out to be the perfect spot, almost right at the center of the Zocalo and la Palacio de Bellas Artes. Walking along Calle Madero gives you tons of shopping and food options, and connects you to the whole city. Brenda and the rest of the staff at Hostal Amigo are really nice. They all speak at least some English and are willing to help you find your way around, book a tour, and get settled in for your stay. Just step out of the hostel and you find yourself in the middle of Mexico City life.
Breakfast is offered every morning from 8-10, but you might want to grab your own outside. This isn't a problem at all though, because food is really quite cheap and tasty all around. The rooms and bathrooms are relatively clean, not hotel-level of course, but I didn't have any major complaints. If you're looking for a spot with a view, this probably isn't the place (or maybe there are other spaces with views), but for someone who just needs a spot to keep their things and sleep, but is out most of the day, Hostal Amigo is just the spot.
One other thing I was a little thrown off by at first is that there is absolutely nowhere inside the room to properly lock up items if you're using a cable lock. There's a small safe that I couldn't get open, but eventually I decided I didn't need it, as I had a private room and I felt pretty safe just locking my door.