My girlfriend and I stayed 2 nights at Robert's place. The home itself is beautiful, and situated in a great neighborhood. There is so much nearby in terms of bars, restaurants and cafes, a great market and even a light rail station.
I can't emphasize enough how nice the home is, and how well-decorated it is. The bathroom we used was gorgeous. Having said that, I suspect there have been some issues with previous guests, as Robert no longer allows the kitchen to be used by guests for cooking. However, you can store a couple of things in the refrigerator if needed. And you can make coffee in the morning as well. You're expected to take your refuse with you after your stay, meaning emptying the trash can in your bathroom and taking any food you put in the refrigerator with you. This was perfectly fine with us, but others should be aware of this. When you throw things out, you'll want to make sure you separate the kind of things you're throwing out. That is, organics with organics, recycle with recycle, etc. Robert leaving a note about what goes where.
Overall, I'd gladly stay with Robert again and would recommend his place to anyone looking to visit Seattle. His home lends itself mostly to business travelers and tourists looking to spend most of their time outside the home. Robert is pretty up-front about that in his listing page.