Before we begin to be critical, let's just first say this AirBNB is in a great location with easy access and nice views. It is exceedingly clean and the remodel it went through was very solid. It would be an excellent stay for a couple of adults and maybe a couple of small children for a couple of nights, but no more.
"Entire guesthouse"? "Use of 1 car garage"? "1200sf"? Nope, none of the above. Garage is locked and you have to park outside. Guesthouse has a huge basement but that is locked and inaccessible. To be generous, you get MAYBE 750sf of living space. That's like going to a nice steakhouse, ordering a 10oz filet and instead getting the 6oz sirloin - not what was paid for. We never book in places that are less than 1000sf. Our master bedroom at home is about the size of this place!
Amazon key? Dont know. We showed up out first night and had to wait 30 minutes outside before we got a code that would let us in.
We are desert people so Seattle summer nights are freezing to us. Cutting-edge Nest Thermostat? Didnt work - no heater. Cool new Heat and Glo fireplace? Didnt work - no heater. After a ton of troubleshooting, airbnb messages with the owners and a visit by property maintenance, we had a solution - extra blankets and a space heater that was good at heating up about 4sf of space. Dont know if the space heater even worked properly because when it was plugged in, none of the lights would turn on.
Now I'm not going to criticize the small things like mismatched silverware and dishes; or the fact that none of the multitude of Amazon devices would work without a hard reset and an Amazon account (but I'm sure the surveillance cams did); or the sleep number bed not working... until it was pulled away from the wall and plugged in; or the hot water for the shower only lasting about 10 minutes; or that if you want to lounge/relax somewhere comfy, you have to choose between one of the beds or a tiny love seat. No, there is only so much you can ask of owners who are away in Europe for the summer.
But we gave it three stars. Because it was clean. And it was located where we wanted. And it wasn't the worst AirBNB we've ever stayed at. But it looses a star for being misleading about the size. And another star is lost because so very little worked properly when we arrived. Maybe we are being too critical, but I think that any group of more than two people staying there would say we are being too kind.