My dad has an '07 Forester ATX bought a couple years ago.
Just did a 3x drain/fill a couple months ago for him.
After researching the [censored] out of it, I was going to go with Maxlife from WallyWorld, except they didn't stock it in the gallons locally. So we went with Supertech and a bottle of Lubeguard red from NAPA. Shifts way better than before (who knows if it was ever serviced - I did it around 130k). Many people had no problems with ML or Supertech when reading through the message boards.
Either way you go you should be fine. If you're going to do multiple drain/fills, $6/qt adds up quickly, though. May as well do the diffs while you're at it - M1 or the Supertech blend both came highly recommended for easy to find locally lubes, FYI.