I did the Costco pkg, and stayed at Swan in November - 5 nights.
Random thoughts:
The free restaurants are the Garden Grove and Fresh Meditteranean. Fresh Med closes after lunch, therefore, free dinner is Garden Grove only. I do believe it will include the buffet options at BOTH. Garden Grove offers a few different themed buffets at dinner, but it "hypes" the seafood sensation buffet on Saturday night, I believe. Reviews are all over the map for it. We did the weekday Breakfast BUffet at GG one day. It was overpriced, but decent, all in all. We didn't eat there at any other meal. We halfway planned the seafood buffet, but when I peaked in at it, it looked kinda tired. That is just my opinion. The breakfast buffet was plentiful, and the good stuff on the breakfast buffet was VERY good, but the bad stuff was VERY bad.
If you are sushi eaters, Kimonos should be a plan. It's not fantastic, but it's very good for disney for the price. It didn't seem like disney highway robbery for the quality at all. Matter of fact, if we do the Coscto package again, we'll eat at Kimonos at least twice.
Their pool complex is AWESOME. The Swan has one big rectangular pool and a hot tub, but if you take a quick stroll across to the Dolphin pool, they have a sprawling pool system. It's just freekin awesome. Two of the pools are heated, there's a slide, a kiddie splash type thing, and three or four hot tubs. Also, behind the waterfall, there's a very decent sized seating area with bathrooms. The Swolphin pool complex is AWESOME.
Ok, so you will not be able to get the dining plan, but if you do your math, and figure out that the dining plan would be a waste of money, then just throw that out of the window. Remember, you PAY for your meals on the dining plan, and if you overpay for those meals, then what's the point? Yes, you can absolutely make the cost worth it by incorporating character meals, or ordering the expensive items, I totally get it. BUt for us, NOT doing the dining plan was a no brainer for the way we eat. We'd probably wind up throwing a ton of food away (but still paying for it.)
The location - ten minute walk to epcot. Quick boat ride to both Epcot and Hollywood. And then, just to throw this out there -on top of the restaurants at Swan and Dolphin that will be a quick walk from your room, you HAVE to include the restaurants and street shows at the Boardwalk because it is basically at the hotel's back door. (Pro Tip: Ample Hills Creamery on the Boardwalk for ice cream is fkn fantastic; I thought the Boardwalk Bakery was a letdown.) You can also walk to Hollywood - 15 minutes-ish. The epcot walk is seriously 10 minutes. It's RIGHT THERE!
The Costco price is the price. There is no hidden fee. If you get a car, you will have to pay the parking fee though.
The hotel rooms and amenities are usually described as deluxe feel with the moderate price. You'll have to add some money for your trip to the hotel from the airport. I'd suggest 150.00 which will include a decent car service to the hotel, and uber to get back to the airport - (uber cannot pick you up from airport proper, or else it would be 100.00 round trip. )
Now, use the disney site to price out a value / moderate / deluxe hotel rate with the same hopper tickets. I'd guess if you wanted to be very similar, try pricing out one of the Epcot resorts?
Now factor in the dining plan vs what you'd REALLY eat for meals - really add up some restaurant costs by looking at menus of places you'd go to.
Now go back to the costco package, and remember, that price is THE PRICE. No hidden fees. I thought it was too good to be true, or maybe I was overlooking something.
I would be happy to try and answer any specifics that you post.
We had a fantastic time. The Mrs had really no interest in Disney. She is a frequent traveler, and she does stay at pretty decent hotels. She rated The Swan pretty high, and I think that helped her really enjoy the Disney experience. She wants to go again. For all who say the Swan isn't a full Disney Resort experience, I have no reason to not believe them. But I will say we had an absolute blast, and would not hesitate to book the Costco pkg again. We do not need all of the Disney "in your face, all the time" experience though. I posted a quick report in one of the Swan threads, but I'll happily try to share info on specifics if you have any questions. The Costco experience was great also. I had no questions about ANYTHING. ONce we booked, they sent us an email or three, and everything was smooth as silk. Instructions, reservation numbers - all that. Silky smooth. Grade A experience in my book.