Well the DVC side of the Boardwalk is fairly long - you can be close to the main lobby, on the boardwalk, or all the way out by the parking lot. If you end up with one of the 'xx23' rooms, you're actually fairly close to self parking...though down that end of the building you only have stairs, not elevators - so if you get a high floor, hope your luggage isn't too heavy! All the way down the end where these rooms are, you're also quite close to the bus stop for Boardwalk. So it has some conveniences...but the walk to the lobby and boardwalk area are quite far.
You can try requesting the rooms - they are 'standard view' rooms, so if you're booked to 'preferred view' you actually won't be getting them. Even if standard view, I believe they take some good luck to get them, as many request these and don't get them. There are only 3 rooms like this...so chances are pretty thin! In my case, I didn't request them at all - I only discovered them when the front desk placed us there as an apology for not getting our requested 'close to the lobby' room, and said we'd like this room even though it was far away. They were right!