Trying to stay on the OP topic, while I have no regrets, I wish I had understood how difficult it can be to stay some where other than your home resort. We have had some success with this but I don't think we will ever be able to stay at BCV ot VWL. We should have done more research but our guide made it seem so easy. I also would complain that sometimes units are not as clean or well maintained as they should be and while others have reported that they have had their complaints addressed promptly, we have not.
As for valet parking, yes that used to be a DVC perk.
Are you calling to book your reservations on the first day of the 7 month window? I always call right at the 7 month window and always get availability. Unless you're trying for a vacation in December, Food & Wine Festival, or Spring Break, you should have your choice of resorts. Even if you own at BCV or VWL, you will have difficulty finding a room there if you try to book your reservation after the 7 month window opens. As far as dirty rooms, I experienced a problem once at Saratoga Springs and brought it to the attention of the resort manager while I was there. They moved my family from a Studio to a 1-Bedroom Villa and returned all of the points back into my DVC account for the entire trip.