lol, rain, homelessness, beautiful outdoors and sushi is quite a good summary. Would you be coming from the UK? elsewhere in US? Other? The rain thing is a bit of a myth, well at least from a British perspective it's nothing unusual, the summers here are hot and beautiful, can be consistently 30C plus for weeks at a time. We went about four months without any rain at all this summer.
Homelessness is a major problem, if you'll forgive me a brief economics lecture (!) here, like in San Fran, big tech's big salaries meant that the average person can't afford to live here, so there is a stark have/ have not situation. So with a husband in the biz you would have a nice standard of living, but personally I can never quite shake the feeling of being very privileged.
Scenery really is stunningly beautiful, if you are into hikes and being out on the water in the summer this is the place to be!
Area wise I think you have the right idea, the areas on "the Eastside" i.e. on the East of Lake Washington are very nice, most have a nice walkable downtown that feels perfectly safe. Personally I'm not a huge fan of Bellevue, as it doesn't have as much of a centre, I would choose Kirkland, Redmond, Bothell areas. I live in Kirkland and work in the city centre, I wouldn't bother with the bus (maybe I have become a lazy car using american!) my commute is about half an hour drive, and I usually see an eagle or osprey and get a great view of the Mt. Rainier on the drive so it doesn't feel like a drag
And the sushi/ asian food generally really is excellent!!