Our family of 6 (4 more-or-less grown up kids - ages 13 - 22) rated this as one of our best holidays ever.
Giorgos is an excellent host. He responds promptly, and was happy to do a lot of the "heavy lifting" of the holiday - arranging rental cars to be waiting at the villa, and arranging airport transfers. A small issue like the electric gate getting stuck sometimes was sorted straightaway.
The villa: location was perfect for us. Superb views - the listing doesn't exaggerate anything. Secluded enough to be quiet feel properly away from any bustle. Surrounded by undeveloped land; lots of goats, swallows, bats etc: an owl even landed on a post one evening! But a 5 minute drive from Gerani, and 20 minutes from the excellent town of Rethymno. The only disturbance was a 2 or 3 nights when the "Gerani Palace" (over the brow of a hill so not actually in sight) had a function on (probably a wedding). Then there was music late into the night / fireworks etc. But somehow even that wasn't annoying. Some Greek crooning into the night very different to being close to a bar or disco. And it was only a couple of nights.
In the villa everything worked, and there was plenty of space for each of the kids to have their own room / space as and when they wanted.
Lots to do locally - in the ended the furthest we travelled was to Knossos travelling East, and the Imbros gorge heading West / South. We could easily have spent a month there and not started to get bored.
You _do_ need a car, I would say. Certainly in the summer when even the 20-30 minute walk to Gerani had us (well, me, certainly) puffing. But I'm guessing that would not come as a surprise.
So - thoroughly recommended!