We found ourselves in need of a place to stay on very short notice and Marcelo fixed us up quickly with very comfortable beds and good wifi in a central neighborhood. It was all we needed.
Mario was very responsive and kind, but we didn't met him in person. If you're looking to stay with locals, this may not be your place. It's like a hostel with a number of rooms sharing a kitchen, living area, balcony and bathrooms. It's very nice.