We stayed at the Casa Blanca for 4 nights in September 2017. You can't beat the location as it is just around the corner from the Plaza de la Revolucion and Reforma. There is a Sanborn Department store across the street, Le Meridien in the next block, walking distance to the 2222 Mall, the US Embassy and the Angel de la Independencia monument. The hotel is rather dated, the food not great, but the service was good.
On our 2nd night, we experienced the 8.1 Earthquake. It was scary and strong. Fortunately, the building held up, the people were mostly calm as we evacuated the hotel through the fire escape. We all headed towards the Plaza de la Revolucion which was an open space where we felt relatively safe. It happened at 12 midnight and it was cold. I would like to thank the hotel for being very thoughtful. Quite a few guests were in a state of "undress" and the hotel brought out bundles of unused, fresh towels either to cover up or to warm up from the cold. They were also very quick in bringing out coffee, bread and water which they served just outside the main door. The hotel power never went out and I was able to call some of my companions and urged them to come down through the fire escape. We were all safe and after some inspections, the hotel staff allowed us back to our rooms. Needless to say, our Casa Blanca Hotel experience was an "earthshaking" one.
Thank you Casa Blanca Management for taking care of us.

We stayed at Hotel Casa Blanca for only one night. The hotel is decent. Our room was very small but very clean and comfortable enough for one night. The bathroom had a shower (no tub) and the hotel provided basic toiletries. There was a fridge in the room but in typical Mexico style, they unplug it between guests (to save energy) and so it smelled slightly of mildew and was not cold when we arrived. The bed was comfortable enough. The service at the reception when checking in was very slow and not super helpful (they didn't provide information like the wifi code or anything other suggestions or information about the hotel's amenities.) Overall a decent experience.

It was a nice and clean hotel located near downtown. A few blocks from the Monumento a la Revolucion. Close to everything while still not too noisy, very friendly staff, helped us find restaurants. Transportation was very accessible
The breakfast and dinner served with room service was tasteful. Pretty punctual too.