This is kinda cool, and better than nothing, especially for their target markets like real estate, but I cannot for a second believe that this is the best UX for browsing the 3D space. It's slow, it's clunky, the transitions look poor, and I struggle to get a "feel" for the 3D space in any useful way. It seems to be a straight clone of the Google Street View interface, and that was one with many more restrictions on the data at a scale far larger. There must be improvements possible here!