The machine came in already assembled and the instructions were very easy to follow with helpful diagrams to show how to assemble and disassemble the juicer for cleaning.  I did juice some watermelon, oranges and apples and it did well.  I had previously added a biodegradable pulp catcher to make cleanup a little easier.  The juicer was very powerful and the juice had a very small amount of pulp.  The juice was tasty.  A brush is needed to clean the strainer but overall I would recommend this product.