Fantastic! The apartment is great - spacious and comfortable. The hosts are clearly well-traveled; the eclectic world decor is that of people with lots of passport stamps. And it's hard to beat the location. Mount Baker is a beautiful old neighborhood; you can walk east down the hill through charming streets to Lake Washington. But walk downhill the other way and you'll get to the Mount Baker light rail station; trains from there have you in downtown in 15 minutes. There are also interesting restaurants in the neighborhood; if you're in the mood for Chinese, try Uncle Lu's.
Our Seattle trip was made even better by staying at this gem.