Although this dishwasher does an excellent job of cleaning dishes and has a variety of useful features, the way the lower rack holds dishes is disappointing - the bottom dish rack holders (prongs) design seems inefficient and not well-tested with real beta customers, before releasing this product.  The bottom rack seems to have too much space (not enough prongs) especially in the center of the rack. Also, it seems we have to put large plates in only one direction, otherwise they tilt over making those plates less likely to get clean and wasting space.