My advice is relax. BWV is a fabulous resort (and my favourite resort is OKW) - so I’m not just saying that.
YES - the hallway is LONG…but it’s more of a joke than anything. It’s honestly not going to affect your holiday. And I agree, it is nice to have the car right at the door; OKW and SSR spoil you that way - but remember that you probably won’t be using the car everyday; you can walk to Epcot and take the boat to HS. Bell Services will take care of the luggage for you as soon as you arrive.
Your choice of a standard room is a good one (once you stay there once, you figure out what a good deal you’re getting and you can be very smug about it; you’ll overlook the front gardens and a little stream; you honestly can’t even see the parking lot unless you lean out. It’s much more peaceful than the Boardwalk (and we’ve stayed at both).
As for the buses; well, people gripe about buses everywhere at WDW. Sometimes you have good luck, some times you don’t. I can only remember one instance there where we waited a longer time than usual.
You’ve stayed at SSR and OKW and they are fabulous resorts; but so is BWV - it has a more “exciting” sort of hotel vibe. The lobby is gorgeous!
Trust me (and you’ve trusted me before, now haven’t you?) you will love it. Don’t second guess yourself. It’s always fun to try new resorts and this one is gorgeous. (The layout is basically the same as SSR).
Except for that freaky Clown pool…