This is a terrific upgrade from what was in our kitchen before.  Only two comments....1. The arrow on the plastic connector for the spray hose has an arrow on it.  My opinion is the arrow should point in the direction of the water flow.  By following the install directions, it points away from the direction of water flow.  2.  The red arrow sticker on the base of the main unit is described as lining up with the engraved arrow on the piece that seats through the counter top.  It's a quality control issue in that the red arrow was in the wrong place to allow for mating of the two pieces.  Someone put the arrow half around the main unit.  But not too hard to figure out the solution.  3. The swivel action of the main unit should have a little more friction to it.  It swings around too easily.  Still we are very happy with this product overall.