The easiest way to describe Edgar's house is PERFECT!
The place is extremely well located. I walked everywhere on foot, public transportations were really near and they would take me to anywhere I needed, there were lots of little coffee places and restaurants nearby and also grocery stores. Although the house is near most the touristic spots it is in a really quite and extremely safe street so I didn't worry about those things at all.
Besides the location, the house has everything you need (and stuff you didn't thought you need until you saw them!). It is very clean and cosy and Edgar comes by every few days to change your sheets and clean the house.
But on top of all of this, the best thing, for me, was the host! Edgar is really nice, preoccupied and will help you in any way he can. He will give you a tour around the city, show you the main places to go and how to get there. And if you want he will even go pick you up from the airport!
He is a really fun and interesting person, so if you decide to talk to him he will really listen to you and provide you a really amazing and difference experience.
So, If you are looking for somewhere to stay around Belem, don't look anymore and just book this place! At least this is my opinion. ;)