Compared to everything on the market currently, Maytag's line does have the most powerful motor. It's only a slightly smaller version of the motor used in the previous generation WP Voyager machines. As with most everything in the last 5 years, most of the components of the Maytags have been altered to accommodate a lower water level per fill. The wash arm supply tubes and spray holes are all narrower, and while the arms themselves look wide, they're actually about the same width as their Whirlpool/Kenmore/KitchenAid siblings' arms when you look underneath. Currently, Maytag is the only line in the Whirlpool family that does not alternate spray arms. In my opinion, compared to the WP/KM/KA of the resource-saver dishwashers (apparently they're called Tahoe GlobalWash dishwashers), it seems to have much better wash action and because the arms don't alternate, the cycle times aren't as long. Of course it isn't going to have the power that the Voyagers have, because they use 30-40% more water and have beefier wash arms, but for what we have to choose from on the "new" market, the Maytag isn't a bad choice. My only complaint is the stupid tiered upper rack.