this clock be amazing . I do a lot of research on these clock and have a biobrite before this , and be convince this be the best choice . the light in the morning help I to wake more naturally . I find the light to be plenty bright . the radio work fine , and be much less jarring than a beep . it have a security feature that be convenient . it be small and lightweight , which I prefer as it be more the size of most alarm clock . the BioBrite , which I have before , be huge , take up the entire nightstand and be finicky , fragile and complicated . I like the size and feature on the Soleil better and think it be much easier to use . one change I would make be a less bright time display . I would also like for it to cost less , but compare to other dawn simulator , it be a good deal . all consider , I be extremely pleased .