Ivan's home is great, it has everything you need, the couch is comfortable, it is super nice to have a desk and the bed is solid!
I really enjoyed the location, Roma Sur is quiet, safe and clean. It's close to the hustle and bustle, but nestled right outside of it.
And as an added bonus Brown Caffeine Lab has the best coffee I've found in all of Mexico - ask for a V60 or an Origami!