Product review (5 stars): Works as described.
As a 58-year-old man with three advanced degrees (including broadly analytic lab science - criminalistics) and thirty years of primary home laundry experience, I viewed pureWash's technology and claims with a jaundiced eye.  And I've been a "quiet environmentalist" since before participating in the first Earth Day in 1970 (IMHO consistent environmental actions speak louder than the latest "Green" condemnation demagoguery).  But the "ionized water" technology has been used over the last decade in institutional and commercial settings with results at least as good as typical detergent-based laundry techniques for both sanitation and cleaning.

The pureWash unit presented favorably upon inspection, installation was quick and without incident, and the unit tested out as specified.  Test load was four large heavy cotton bath-sized heavily soiled "dog towels".  My spaniel girls, especially the young one, enjoy the wet Spring and get profoundly mucky.  The test towels were loaded with dirt and muck and grass stains and filth.  I normally wash and rinse warm with a well-rated scent-free liquid detergent and liquid non-chlorine bleach, both properly measured for each load.  My primary goals in laundry are to sort properly, wash with the appropriate detergent, use enough detergent to reach "break point" for cleaning the laundry, and to get all the soap and dirt out of the laundry before drying.  The pureWash was used without detergent or non-chlorine bleach and with cold wash and rinse.  Some initial observations:

* The intake water from the pureWash was actively very fresh smelling without any hint of perfume, just fresh like spring thunderstorm rain.
* The wash water upon draining was filthy and smelled foul (probably because there was no masking detergent odor).  There was residual soap foaming from detergent that had evidently remained in the towels from previous detergent washings.
* Each subsequent rinse had progressively less smell, water discoloration and soap foaming, but it was obvious that the treated water in each rinse continued the cleaning process.  Personally, I like to watch the laundry filth going down the drain.
* Upon removal from the washer, the laundered towels smelled very fresh.
* Upon drying, the towels appeared to eye and nose to be as clean as any of my similar detergent-washed towels.  I am interested to see how their absorbency compares in actual use.

Now I don't know how long my pureWash is going to last, what there is to wear out inside the device, or what long term results and reliability are going to be.  But it's warrantied for a year, and it's generally during that time that manufacturing and design defects become apparent, in my experience.  No PureWash wash cycle is a traditional wash cycle (no detergent issues and no water heating) and every rinse cycle is a PureWash cycle (the treated water is obviously working each rinse cycle to further clean and sanitize the laundry load).  I'm really pleased and satisfied with these initial results.

3/21/13 EDIT:  I continue a year later to be impressed by 1) how fresh the PureWash treated water going into the washer smells and 2) how foul and sulphuric the wash water draining out of the washer smells.  To me, this means that the stink is out of the laundry.