Sleeping again!
I have had both this model and the model with variable speed options.  Personally, I didn't find the extra cost for the 2 speed control worth it for my use.  This creates enough white noise comparable to my old box fan but is just a fraction of the size.  I have it on my night stand as I needed it to be close for maximum volume/drown out.  But thanks to this device, I no longer wake with all the night noises of the city.  Additionally, it easily fits in my suitcase which means I can get a good night sleep while on vacation as well!!  I loved this product so much I bought one for my kids to use since they were infants.  The first one I bought is 6 years old and running great still (knock on wood) and has been used every night since purchased and at naps once the kids were born.
Rating: 5 stars