I'm afraid to say these are not genuine Disney merchandise.
As they have been out of stock with Disney for a LONG time, I checked with the seller before ordering and he could not confirm they were genuine Disney products. I have no idea on the quality as I decided not to buy one, they may be perfectly acceptable but I will be waiting until Disney have them back in stock.
My contact with the seller himself was first rate though hence my rating. He was prompt and courteous in his replies and was honest when asked direct about the dolls.