Its OK. I'm north but used to live is Gresham, Or. Its a clean state, or used to be.(rarely trash on roadsides). Never spent much time in Portland itself. I know traffic is a BITCH at rush hour going through Portland on I-5.
I'm a country boy. Mt Hood is awesome. Astoria is awesome. Oregon coast is gorgeous as is Washingtons coast.
Yup. It rains a lot here in the Pac NW. But thats why its so green. And when the sun comes out you won't find a more beautiful place. (Stay west of the Cascades for green. East side goes to dry desert type.)
People are people. Good and bad. PNW people are more laid back and nicer in general though.