the good : the unit have a nice big display , many sound choice , big button and be relatively easy to figure out how to set time , sound and dual alarm . not sure if it block out the sound that i need it to so perhaps a little more information about the theory about how this white noise and other sound be suppose to substitue and improve one night sleep . I would say that some night i use it be sleep better and other night i do not use it , I sleep better . the reverse be also true at this time . the bad : my wife and I have accidentally knock this clock of the night stand then off the dresser a total of three time and finally break it , in less than one month . I do not thing i have knock and alarm clock down three time in my whole life prior to this . my point be the clock be very light and shaped in a way that seem to make it not balanced with a center of gravity . it easily slide off when one be fumble with the button in a half awake state or in the dark . Improvements need : a center of gravity design for case or better base that be slip resistant . 2nd : light button to turn on\/off the alarm and setting button so they can be identify in low light or in the dark . this could be a stretch on my part but I reality be that someone may want to go to bed after it get dark out or may even want to wake up before the sun be up , thus have a subdue led button might be usefull on this type of device .