This house comfortably hosts 4 people but with beds (instead of sofas) could host up to 6 people (if you need that). My recommendation is that this is a modest house that offers best value for money when shared with other people (value = total bill / number of people).
It's not a new house and tap water is too hard to be registered as drinkable. You'll need to buy drinking water from the stores.
It has a nice big table in front of the house (accepts easily up to 10 people), with lots of shade, allows you to enjoy dining and socializing in the long summer evenings. Combined with a cca. 600 watt LG bluetooth speaker near the living room, this makes a good setup for light partying.
The air conditioning is there (and new) but not needed in the nightime: we stayed in August (daytime temperatures between 28-35C, nighttime 18-25C) and just opening the windows (well protected with meshes to keep the mosquitoes out) worked just fine for us. In the daytime, we were out and about so if you stay in the house you might need to switch it on. Crete has a relatively windy climate which makes it much much easier to handle even higher temperatures.
We didn't have an operating laundry machine so I'd suggest ironing out the details about all the amenities before you book. We had 2 refrigerators which was great since we cooked there and appreciated the extra space.
I just wish wi-fi was better since it goes offline for no apparent reason (about 30-50% of the time) and then switches back on. Router seemed okay, but the infrastructure (network) might be the cause.
Location is up in the hills so if you're looking to "unplug" this is your place, since you'll be surrounded by olive trees.
Having a car is mandatory since it's 15 km away from the center of Heraklion and Amoudara beach (a recommended 5km long beach with tons of cafes, restaurants and free spaces).
Hosts were very forthcoming and responded to all requests very quickly (we had just a few requests).
Important: if you book the place I strongly advise establishing contact with the host (Kostas) asap since he will provide the accurate location which is near the highway and relatively easy to reach.
(Google maps + airbnb location is inaccurate and has left me stranded on a 20% incline dirt road that my rental hyundai i20 just couldn't handle. But Kostas was wonderful and helped me out, which is something I appreciate a lot to date ! You won't have to worry about this if you get your internet working as soon as you land. I recommend getting a SIM card on the airport. Most shops are closed on weekends, except in touristy places like Herssonissos.)