We had four in our group and two were seated about 10 rows farther up than the other two. We were able to get our seats rearranged on two of our four legs (to be fair, I didn't even try on two of them because there just wasn't time to even ask about it!) so that we were sitting closer together, which was nice.
Every employee was super friendly and helpful and our pilot apologized profusely when our flight out of Seattle was delayed (we sat on the run way for about two hours waiting...) due to the unusual heavy snowfall.
My one complaint would be that only one of the four planes we flew on had movie screens for the seats and that at no time did flight attendants say they had earbuds available (complimentary or for purchase). The one flight that had the screens was nice - my son was able to watch an entire movie while we sat on the runway - but his second attempt to watch anything was prevented by sound issues. Not a huge deal, but it was a little frustrating as we were sitting on that plane a VERY long time.
I would absolutely recommend Alaska Airlines to anyone traveling in their area!