Rich and I both have countertop machines, different models, mine has the detergent dispenser and rinse aid in the door, far easier than putting it into the back of the machine for certain. Mine also has a removable rack so you can wash larger items in the main basket, the plate tines come out, and it leaves you with a flat rack to wash cups, pots bowls or what have you.
If any one has a dead danby and wants to part out the rack, Rich is in need of one...
Chris