How you view Renee's spot will really depend on what you're looking to get from your stay. If, like I was, you're just wanting a clean, quiet place to shower, sleep and use as a starting point, it's great. But if you're going to want to spend any time at all relaxing IN your Airbnb, your mileage may vary.
First off, let's get this out of the way: the ad uses words like "cottage" and "back house." It's the garage. It's finished and has a bathroom, but it's the garage. Which means that it's pretty spartan. It's thinly insulated, but an air conditioner and wall heater are provided, which you will use. There's a microwave, but no other means of prepping food. There's no TV, so bring your laptop or tablet if you want to wind down with a show or movie.
The best thing that can be said about the bed is that there is a bed. It's pretty basic and I've had a better night's sleep while camping, but the room is quiet and comfortable once you get your room temp figured out.
There's street side parking in front of the house, which is great. But at one point in my stay, someone in the house parked one of their cars in that spot and the other nearby spots were also taken, requiring me to either park halfway down the block, or use the driveway, thereby preventing the family from doing so again until I left. It was an awkward, inelegant choice, but there you go.
So to reiterate: if all you want from a stay is a quiet place to sleep, get clean and hold your stuff while you travel and explore, Renee's place fits the bill. But if you prefer a stay with any of the amenities or comforts of home or a hotel room, you're going to probably want to look elsewhere.