We purchased this to replace a 5 year old Frigidaire dishwasher.  Having had to pre-clean and rinse our dishes with the old unit, we were very skeptical of just putting our dishes in dirty.
Additionally, we were concerned about the drying performance of the unit since it does not have a heating element.
Both concerns were immediately resolved on the first wash.  We only scraped the food off of plates before loading, and we enabled the Air Dry feature on the heaviest/longest cycle.
Everything came out perfect - better even than pre-cleaning/rinsing in our old unit.  Everything was more dry as well.
This performance has been consistent for every load since.  We have had this unit for 6 weeks.