While we didn't get a chance to meet Carlos & Mari but they were fantastic hosts and Carlos made himself available via text / call.
The place itself is very cute and great for a weekend stay. However, you have to be okay with a bit of noise travel due to it being an older place. Being walking distance from various shops and restaurants was a major plus. Also, the walk to the beach / boardwalk is short and offers some spectacular sunset viewing.
The studio is a decent 20 mins away from downtown Toronto, but if you want a place with a little bit more privacy and some fantastic scenery it's worth the distance.