Portland area has high unemployment.
Portland city has lots of creative people. Yes, there are lots of places for bands to play, and lots of types of music to choose from. You will be joining the queue of bar band musicians looking for a gig. But dude, I heard this twice: Portland don't need another musician, it needs someone who can figure out how to sell the bands already here, and their creative music, so as to earn money. Emphasis: earn money, like from outside just Portland, OR.
Local free newspaper on entertainment scene -
Willamette Week | Monday, November 2nd, 2009
Compared to almost every city of similar size East of Mississippi River, Portland is very safe. All parts. When compared to an idealized perfect world, Portland does have crime. It is a large city, not BIG, but large. Live where you want to. If you can afford it, check out the Pearl District. Then again, maybe near Lloyd Center Mall? I presumed you did a Google map search for music recording studios, Portland OR.
Check a map; you will notice that Portland is one of the most northern cities (distance to arctic circle) in lower 48 states. Just eyeball on my part, but Portland OR seems to be around same latitude as Portland. Maine. Climate is still mild due to ocean, but January should be short daylight hours. Portland OR, and Seattle, WA don't have N'eastern winter storms like New England.
Good luck on your research. You should do a lot before such a move.
Phil