Overall, I am a bit torn about my stay at Stratos place.
To start with, I really liked the place itself. Looks exactly like on the pictures: Clean, modern, quite spacious.
As the location is quite far outside Mykonos town, you really need an own car/ATV. Alternatively, Stratos works with a wonderful couple who can drive you everywhere you want for around 20€. Only problem is though that they hardly speak any English so it's quite a challenge to communicate with them.
Now, to the experience that really bothered me: After a night out in Mykonos town I wanted to go back to the place. I showed my cab driver the Google maps location that were given on AirBnB. Unfortunately, it is not correct (doesnt mean it is off by 100 meters, it is really off), so we couldnt find the place and I ended up looking for it by foot which turned out to be unsuccessful as well. Was running out of battery and tried to reach Stratos but couldnt do so as it was quite early in the morning. I ended up walking back to Mykonos town (which you don't want to do) to recharge my phone and tell Stratos where I would like to be picked up. Once he saw my messages, he was really nice and quickly organized me a pick up which I really appreciated. Still, it was very annoying that the coordinates were wrong and there was actually never an apology for the inconveniences I faced.
My conclusion would be: If you have an own car/ATV and are fine with a location quite outside the town, the place is a very nice and affordable option! If you are not mobile, don't do it