NP!
The garden wing rooms are just as great. You just won't be in the main concourse where the monorail goes through, which is a draw to some and not to others. I will indeed be quieter if the kids need to nap.
The only garden wing left is on the south side of the Main building (the north was demolished for Bay Lake Tower DVC resort). That puts it slightly further away from the park, but maybe 2-3 minute walk. Also as
@Redwes25 said, you won't get the views of the park, again, semantics. If you dial up google maps, and search for the Contemporary, it will be the string of buildings to the lower right of the Main building. It is very close to the pool though.
One thing to know about the Contemporary is that most everything is located on the 4th floor—dining, gift shops and Monorail (is on the 5th technically). You'll be entering the main bldg from the ground floor, so you'll need to go in and up a few flights to get to the action. Again, semantics depending on what's important to you.
Here is a video showing the walk from the main building.
If you are on a lake view side, it's a nice location to relax, watch the boats and monorail go by as well as an awesome seat for the nightly
Electrical Water Pagent. The show itself isn't all that advanced—been the same since the 70's—but the kids love it.
and for the hell of it, here is the
walk from the main building to the MK. The only real difference now is that there is a bag check checkpoint about 1/2 way down the path.
We don't stay in the actual main building either, we stay at Bay Lake Tower, which is that round shaped building on the other side of the resort. And like the garden wings, there are no amenities over there, we need to walk to the main building too. The only main difference is that we have a walkway bridge that puts us right on the 4th floor. Otherwise, its basically the same.