We replaced our shower head with the XMT-633E, the assembly was easy, instructions clear and easy to follow. The shower head has several spray patterns available to select. The selection is easy with a lever on the shower head. I love the high level full spray and the center flow pulse, however, the low level is too little water. Perhaps the low level would be ideal for a small child. Based on the new water flow code of 1.8 gal this sprayer performs well on all levels.