You will love it!
The rooms are quite large, clean, and well maintained. I agree w/ previous post, best way to monorail is to just walk straight out the entrance road to Polynesian (about a 5-8 minute walk, but a nice one; you'll see little gators, exotic birds, etc.). We drove our own car everywhere else, and that worked well for us; but I believe the bus system works well- we just didn't use it.
The Garden Gallery restaurant is nothing fancy, but the service is good and it is very reasonable compared to other Disney restaurants. If you see servers Jimmy & James, say hi for us (the Red Sox fans from New England)!
The sports bar near the pool is very good and reasonable - (TIP: take out is better than sit down service there; there's a number you can call from your room and your food will be ready in 5 minutes. We sat down for a lunch, and it was very slow).
Theming might not be as lavish as at other resorts, but SOG makes up for it in being quiet, secluded, and near the MK. If we could, we would go there EVERY time!!!
Please let us know how you enjoyed your stay when you get back.
Dan