Renate and Berry were extremely accommodating from the get go; they offered to pick me up if I required, and I got to their place an hour early and was greeted with nothing but smiles.
At time of writing, the basement bedroom was huge and ridiculously comfortable, there was a bathroom and a half, and a nice kitchen for all my early morning/late night cooking needs. They put up an air matress for my friend; 2 beds are not a problem for them.
Montlake is a quiet, safe neighbourhood with a great arboretum nearby. Convenience store is close too, usually open to midnight (try the Australian Bundaberg Ginger Beer). University of Washington rail link and the & #48 bus can get you downtown pretty quickly.
Talk to Berry and Renate if you have any questions about Seattle. They know what's up. Thanks for having me, guys!