the design of the display be great , I like how you can go both back and forth through the sound , without have to cycle through they all , and it come with a lot of sound -lrb- though some I can not see anyone want to sleep to -rrb- . the date and time be easy to set . I do not use the alarm function , as I prefer to use my cell phone alarm , so I can not speak to the functionality of that . some other review have make comment about the shortness of the track before repeat , but it be not something I notice too much . I end up return it after two day . the biggest problem for I be this low hum that emanate from it through any sound , and I find it really distract , because I be listen to the buzz hum more than the sound -lrb- ebb Tide -rrb- . I look up some review , and find other people with the same issue , which apparently turn out to be a cheap power supply cause the speaker to vibrate inappropriately -lrb- or something , I do not exactly understand the concept -rrb- . Learning that , I realize it be a design flaw , and not my unit , so I drop the idea of just exchange it . the other problem I have with it , though by itself it be not enough to make I want to return it , be the lack of real volume control . you have loud , louder , loudest , blow you ear drum , and 11 . the lowest setting -lrb- 1 -rrb- be barely tolerable for I on most sound , and utterly unacceptable on other . have I decide to keep it , I would have relocate it to the other end of the room . I end up replace it with  sound Oasis S-650-01 Sleep Sound therapy System  I only just get it today , so I have no review of it yet , but I can tell you there be no annoying audio buzz . also , some store will price match with Amazon if you print out the page , so I actually get it for less than the Amazon price .