We really liked Rob's apartment at Green Lake. The location was ideal, with a bus stop to downtown directly in front of the building. And the apartment itself was very nice, large, and well appointed. Rob was quick to respond to us when we needed to contact him.
I would've given this apartment 5 stars except for circumstances beyond our and Rob's control. We happened to be there during the hottest few days in Seattle history. It was over 100 degrees outside during the day and hotter in the apartment. What was advertised as air conditioning was a small window unit that was no where near up to the job, and a couple of fans that were attempting to cool down a top floor apartment with large west-facing windows. Granted, most Seattle residents don't have AC because it usually isn't necessary. But it was impossible to safely stay in this apartment over those few days. We had to cancel our reservation after one day and move into a hotel (along with many Seattle residents).
On a typical visit to Seattle, though, when the weather is seasonal, I would recommend staying in Rob's penthouse apartment.