We really enjoyed our stay at Casa di Gouto. We were a family of four, including two older teens and rented both the upper and lower units. The apartments are nicely decorated, maintaining much of the traditional old town style (loved the walls with exposed stone), while also being very modern and updated (nice bathrooms with good water pressure, good wifi, sounds systems, etc). There's also a nice balcony in the upper unit, as well as a rooftop patio. The lower unit felt slightly more spacious, but had less natural light and didn't have access to the balcony and rooftop patio. The upper unit had a little less space (smaller kitchen and couch area), but more natural light.
The one call out is that each apartment is a bit narrow/small in space. For example, with two of us in one of the upstairs bedrooms, there was just enough room to carefully walk around the bed, and there was no room for a suitcase or bag on the floor. The upstairs bathroom is also a bit tight. I would not recommend 4 adults or 2 adults/2 older children in one apartment. But with both upstairs and downstairs (using 4 of the four bedrooms), we were very comfortable.
We liked being on the edge of Old Town. It was a great location and very convenient to walk everywhere - nice to go for dinner, walk around in the morning and evening, and then to be able to come back to rest (and cool off).
The host, Constantinos was very helpful. Communication with him was timely and easy, and he was more than happy to provide us suggestions for restaurants, cafes, etc.
We stayed 3 nights, and ended up doing a day trip to Elephonissi one day, and to Falassarna another day (our favorite beach) . So we didn't spend a lot of time in the apartment. But we found the 3 nights to be just right in terms of exploring Old Town Chania in the morning and evenings, and having a comfortable place at the end of our days exploring.
We would definitely return!