Although we didn't get to meet Kevin and Monica, I could tell they are very nice people and are very experienced hosts. The check-in process went very smoothly and the hosts even messaged us to make sure we're all set. We stayed at this cute little place for two nights and it's exactly the same as the pictures. It was very clean and it's a little apartment in the attic. The hosts prepared everything we needed: mini-fridge, eating utensils, shampoo & conditioner, etc. It's located in a quiet residential area and is close to grocery stores and restaurants.
The only thing was, during our first day there, it did get very hot in Seattle (about 99 degree Fahrenheit/37 degree Celsius) and it was quite hot and stuffy in the little apartment. We had to take our towels outside to dry and kept the fan on in the bathroom. There's a portable air conditioner but it didn't really make the room any cooler and it's kind of loud so we couldn't have it on when we went to bed... :(
Again, that's just because of the weather in Seattle. It did cool down the next day so the heat wasn't an issue for us at all. I'd totally come back to this place during fall/winter when it's not so hot in Seattle. :)