As someone with chronic insomnia, I’ve been on the market for a white noise machine for quite some time. My old machine was big and didn’t look very nice. And the sound was not ideal.I picked up the Douni. Packed responsibly in sturdy cardboard, the Douni Sleep Sound machine looks and feels different than any other I’ve seen. With easily the best faux wood grain finish and texture I’ve ever seen, this is a very handsome unit that would look good on any side table... seriously, the pictures don’t do justice, this looks like real wood. It even feels a bit like wood, but without the weight. I quickly was able to get it set up and plugged in with the extra long usb-type power cord that was provided. It’s a small detail, but usually these kinds of machines have short power cords which are awkward to set up.A short user guide explains the functions of each button, but it’s fairly intuitive. There is a timer function which turns off the sound after a period of time, but it can be disabled so you can run the machine full time, no problem. Volume controls and buttons work well like all Douni products I’ve bought. Three sound selection buttons toggle through the various sounds of each category. I found my favorite sound, “crickets at night” right away. I really like the generous selection of fan sounds and also the noise sounds - white, pink, brown, and other frequencies. The waterfall and creek sounds were also excellent. I’ve made field recordings of nature sounds before myself, I can tell the quality here is unique.What really sets this one from others I’ve tried though, is the lack of an identifieable loop point: each sound plays naturally, with no odd rhythms. The sense of calm I got from the sounds I tried was much deeper than others I’ve tried. The sound is excellent - the noise and fan sounds have lower frequencies present which help mask outside sounds. There is currently a big road project going on right outside my house, but I found a noise sound which effectively canceled the noise from the trucks and the work going on. Remarkable!I love how small it is, how sophisticated it looks, and most importantly how it sounds and performs. I’ve had two solid nights of deep sleep so far and I look forward to using it tonight. If I was to suggest anything it might be those light-up buttons which are present on the A7 Bluetooth speaker, since this is used primarily in a dark room. But that is nit-picking, and would likely add to the price of the unit.This is a simple, elegant, effective noise machine which is more relaxing than others I’ve tried. I definitely recommend it.