Hi there. I moved to Seattle from the east coast 4 years ago, and I am so glad I did!
I agree with writinglove's response above- you can find everything you need in Seattle proper. I think the schools are generally better on the north end, and when you are neighborhood shopping you should do some research into the local schools to be sure. There are some great ones and some that are less great. But I came from Washington DC and grew up in NYC- so relatively speaking, the public schools here are so much better. I live in the Greenwood neighborhood, which is one of the more affordable areas in the north end in Seattle proper. It is more socio-economically (and racially) diverse than other parts of North Seattle, so that translates to school test scores averaging lower. But don't be fooled- I know people who chose to send their kids to our local elementary schools over their higher scoring schools, because they didn't want their kids to only know upper-middle-class white kids. And they are getting a good education. My kids are not old enough for public school yet (they are 4 & 2), so I can't speak from personal experience.
We have great transportation (lots of good bus lines), a walkable neighborhood (though above 85th st no sidewalks- a bit of an issue), parks & playgrounds galore (I can walk to Carkeek Park, right on the Puget Sound, from my house, which is awesome), and everyone here has a backyard. I even live just a couple of blocks from someone who keeps goats, ducks, and geese in their backyard. Lots of people have chicken coops. Seattle is very into urban gardening & farming. I feel like my neighborhood is the best of both urban & rural lifestyle. I work downtown and my morning express bus ride is about 30 minutes, outside of rush hour I can drive to downtown in 20 minutes.
I also agree with writinglove that jobs are competitive, there are a lot of highly educated people here vying for the good jobs, and the big companies & organizations recruit nationally. It would be tough to come here with little experience, right out of college or grad school. And I have heard that the law market in particular is a tough nut to crack- they do prefer to hire locally in the local firms. I have a good friend who graduated from Harvard Law School- like me he is from NYC, but he went to U Washington (here in Seattle) for undergrad, which gave him some local credibility when he looked for law jobs. He has friends from his class at Harvard who are successful east coast lawyers who have asked him about finding law jobs in Seattle, and he advises them that it will be very difficult. This is just what one person has told me, but I believe it based on what I see here.
There is also something called the "Seattle freeze" that you should be aware of- people are not as friendly and open as in other places, and it can be hard to make true friends. It is easier when you have kids because everyone wants to have "play dates," but even so after 4 years I don't feel like I have a great social group (partly because I got here 34 weeks pregnant with my first child- I haven't quite figured out how to make friends and be a mom).
And yes, there is a strain of passive-aggressive behavior that runs rampant. But people are cordial and polite, in general. I like it for the most part. And you can't beat the views.