We love them. Have friends and family that love them too.
This is their third year in operation, too, and soon to be fourth. Based on the reviews, the machine should never have cleaned, would have stopped working, flooded broke and everything by now. It hasn't (*Knocks on wood*)
Aside from the Normal cycle not living up to expectations (Its supposed to wash for about 40minutes, but in reality its about 26), I have NO gripes with cleaning performance.
Some pretty nasty loads go through on a regular basis, and given enough good detergent, will clean perfectly well. Such loads clean nicely on the Delicate cycle, although I use the "Heavy" cycle (158F wash, 150F final rinse. Two intermediate rinses) to help prevent excessive buildup on the filters, and guarantee good performance!
As for size, its probably about half a dishwasher, although the loading is far more practical than the single racks found in normal machines (Especially the Miele's and Bosch's I've used!)