Hi Kelly,
Welcome home to Disney Vacation Club! Like you, my family enjoys trying different Disney Vacation Club Resorts. There are so many different options.
The Treehouse Villas at
Disney's Saratoga Springs Resort and Spa offer a truly unique experience. The treehouses offer quiet luxury in a peaceful wooded setting. This peaceful setting does mean that the treehouses are a little ways away from the main amenities of the resort, including the check-in building and restaurants. There is internal transportation that can take you from the treehouses to the main area of Disney's Saratoga Springs Resort and Spa, or you can walk this distance if you choose. It would be possible to walk from the treehouses to Downtown Disney; however, it would be a pretty sizable walk. From the main area of Disney's Saratoga Springs Resort and Spa, boats are available providing transportation to Downtown Disney.
Overall, yes I do think that being at the treehouses will add to your travel time; however, the unique theme and setting of these amazing accommodations might make up for the additional travel time. Just be sure to be aware of the additional travel time when planning to head out to dining reservations or shows, and allow yourself some extra time to get wherever you are going.
I hope that this information helps, Kelly! Have a great time planning your trip and please do not hesitate to ask if you have any further questions.