Washed up last night. One bowl, and everything's clean. Might use more detergent than a dishwasher. Might use more energy to heat a small amount of water to a lower temperature than the dishwasher needs for a larger volume. I didn't need to add salt.
Oh - and crucially, I got everything clean, which no dishwasher I've ever known can. In fact, it seems a pretty normal part of the procedure for dishwasher owners to steep the pots, put pans and cutlery back for another go, or wash them conventionally anyway to get the dried gak off.