There is no Magical express at the Swan. You cannot charge back to your room from the theme parks when staying at the Swan. You will not get a Magic Band at the Swan, but you can buy one for very little money. If you have a car and are booking with a discount through their website you need to add about $45 per day (daily parking fee and a resort fee) to get the real daily rate for your room.
You can book FP+ at 60 days, you can book ADR's at 180, but not +10. You do get the extra magic hours and you are on the Disney transportation routes. You can add your reservation for the Swan to your My Disney Experience.
We stay at the Swan or Dolphin almost every trip to WDW. IMO, you can't beat the value. It is a deluxe hotel in the Epcot area with the price tag that is often about the same as a Disney moderate hotel. AS others have said, the few small perks that you lose are nothing to the $$$ saved and the great location. The newly renovated rooms at the Swan are simply beautiful!!!