I don't think the Destino Tower feels integrated into that resort. It is totally different in appearance. It's also the check-in for all the resort, but most of the rooms are far from the tower. Even the preferred rooms are down a hallway, around a corner, and past the old check-in and restaurant area. I've heard the Tower is designed more for people at the resort for conventions than regular guests.
The DVC towers are, what, Bay Lake, Riviera, and Poly2? I get why Riviera doesn't look at all like CBR, but it's still awkward having them so close. I don't understand why they didn't try to more closely follow the original buildings for Bay Lake and Poly2. They managed it with Grand Floridian, Beach Club, and Wilderness Lodge, but I guess towers give you more rooms in a smaller footprint.