We went to a hotel that had this and loved the zen sound so much we had to get one.  The SoundSpa works fine, controls are not super intuitive, kind of like the old clock radios.  My wife was hoping to wake up to the zen sound, but ended up just using her phone since we realized it will always be a beep alarm, just once you turn the alarm off it is the zen sound.  We thought that we could have the zen sound be the alarm, but no.  There is also no way to set the alarm to repeat only on weekdays  which means that we will never use that feature despite it being something we looked forward to.  Everything else works fine, having a diffuser with a timer is great, the light is cool even though it doesn't remember your last color choice so you have to wait for it to cycle each time you turn it on.  Overall it's a decent product but considering the cost I would have expected some slightly more advanced alarm and light functions.