twice and both times I was not real happy with the results. I like all the different sounds. I set it for 30 minutes and it went on for almost 2 hours. The second time I used it I could not turn it off because the backlight did not work. I needed something that when the snorer is happily snoring, I could easily turn it on and have that noise drown out the snoring. As of this date that hasnt happened. I will keep using it for another 2-3 weeks and determine if I will keep it or not. Not your run the mill sound soother I havent found anything to make me dissatisfied with it. I WOULD BUY THIS PRODUCT AGAIN EASY TO USE, DOES WHAT IT WAS BUILT FOR (BACK GROUND NOISE). MY WIFE LIKES IT VERY MUCH. ALL OF THE BAD REVIEWS I READ ABOUT THIS SEEM PETTY NOW THAT WE HAVE USED IT FOR ABOUT 1 MONTH. Works perfectly. This is perfect. The display isnt as bright as some have said in other reviews, so I dont know if they modified that. We are able to use the white noise at night and have the alarm set for windchimes to wake up to. Perfect! Been looking for an affordable sound machine for some time. This one is perfect and doesnt try to be something else. The "Surfs Up" is just like the month that we spent sleeping with the windows open in San Clemente, CA. I