This is a great apartment in one an excellent part of Mexico City!
Yes, it is a little loud due to the highway noise. But with some earplugs and the fan, you should be ok.
The surrounding area makes up for it, completely loved the area. Safe, lots of restaurants, etc.
Yes, it can get a little warm inside when it's hot. But the fan should honestly be enough and the temperature drops a lot at night.
Yes, the shower doesn't have a lot of hot water. But keep it quick and you'll be alright.
Would definitely come back!