We had a really good stay in Rethymnon. Sally and George are warm and welcoming people.
The apartment has everything you need, and has a nice balcony and a really comfortable bed. It is a bit dated. The swimmingpool and sunbathing area was really great. We were staying with two people and a baby, and the place was suitable for that, also because of the nice balcony were we could sit during the nights.
We were expecting the apartment to be a bit closer to the old city center. the advertising says 800 meters to the center, but to the old touristic center the walk is rather 1.4 km (downhill). When it is dark best to take a cab.
All in all, we had a very nice stay, Rethymnon is a beautiful city, and starting place to discover Crete, and Sally and George are great hosts that can give many tips.