I say an emphatic "yes" to Olivia's! My wife and I are
DVC members at OKW, but you do not have to be a member to dine there. We always try to stop for lunch or dinner on every visit. The wait staff is very friendly and efficient, the food is very good and the prices reasonable for WDW. We love the laid back atmosphere. If you have never seen the OKW resort, I would definitely recommend that you try a meal there. If you go and get Muriel as a server, tell her we said "hello". (She really doesn't know us, but she gave us great service.

)
It is usually not very busy when we are there and I cannot understand why. I wish I were as close to going back to WDW as you.

We won't be there until December.
One tip, I suggest that you (or your DH) tell them that you are celebrating your anniversary when you make your dinner reservation for the "big day". They may bring a little celebratory cake to your table. They did for our 25th at Artist Point.
We spent a few nights at PO-R in May and loved it. Perhaps you already know this, but they have carriage rides around the resort - might be nice for an anniversary.
Enjoy your anniversary trip!!!