Product review (4 stars): The Little Washer that Could
This is the second Wonder Washer that I've had over the years.  Learned the best way to use it during when I had my first Wonder Washer.  Simple to operate and use.  Might want to consider getting a wringer though, save lots of time.  A wringer can be bought via amazon or can build a budget wringer from three buckets, easily.

Budget Wringer....purchase three five gallon buckets with on lid that fits. Drill approximately eight 1/2 inches hole in the side of the first bucker near the bottom edge.  In the second bucket, drill approximately twenty 1/4 inch holes into the bottom of this bucket and place it with wet clothes inside the first bucket.  Place the third bucket on top of the clothes inside the second bucket, no hole drilled in this bucket. Put the lid on top of the third bucket and sit down on all the buckets.  When the water stops flowing, the clothes are wrung out.
Instead of sitting down on the buckets, I place 35 pounds on the buckets while I do something else for about twenty minutes or so.  And of coarse, make sure the buckets are in the bathtub or outside before sitting down on them.  Else it will make a mess.  My buckets and weights cost under $40