We've stayed in the one bedroom at the BWV a few times and it makes a world of difference.
As everyone else has said, the extra amenities are great. We're not big on getting up early to eat breakfast. It was nice just to eat cereal or fruit in the morning in your room. It was also nice to have an extra stash of sodas, bottled water, beer in the refrigerator....
If you have more than 2 people, the split baths are nice. You have a shower, toilet and sink in one and a sink and jacquzzi tub in the other. Getting ready in the morning goes much quicker.
Hope this helps