This cute & stylish space is perfect for solo travelers, especially folks who expect to be out and about a lot! It's a perfect home base for the CDMX tourist -- and even as someone who lived in CDMX for 3 years, I absolutely cannot believe the price you get for this location.
That being said, you should be careful if you're a light sleeper or don't like noise -- it's right on a busy plaza, so you get a lot of noise (cars/sirens, dogs barking, anyone talking outside on the bench). As you can see (and as you would expect from the price), it's quite a small space and I wouldn't personally recommend it for more than one person -- if you have 2, just make sure someone is comfortable climbing up and down a ladder and sleeping on a thin futon.
I think this spot is an incredible airbnb, you just have to make sure none of the above is a dealbreaker for you!