As an AA flyer, I have never flown Alaska. I am flying a 737-900 this summer and I can choose a premium class seat in rows 6-9 but would like some advice.

What are the disadvantages of sitting in row 6? What type of legroom does it have? Is the divider with First Class annoying?

In the first of coach on American Airlines 737s, the leg room is good. But the construction of the seat legs in the last row of first class give the aisle seats in the first row of coach a more narrow legroom space than the middle and window seats. Is that the case on Alaska Airlines, too?