Tualatin is a beautiful little city just outside Oregon. I have been living in Tualatin for years now and I simply love it. The city is beautiful and well maintained and it has a high standard of living. It's close enough to Portland that you can easily live in Tualatin and commute for work.
One of my favorite aspects of not just Tualatin but the area, in general, is the regional geography. There are many stunning forests around that you can visit. Tillamook State Forest is just one of them. It is close to the ocean and easily the best area in Tualatin.
Homes here can range from expensive to more than expensive, but it's worth it. Tualatin is a very safe city with a good school system which makes it ideal for raising a family and balancing a career. I would certainly recommend living in Tualatin to everyone as a great place to settle down and enjoy life.