Bests & Worsts Reviews from Amazon

Since there were no reviews on this product, I was a little concerned about purchasing, but so far I am very pleased. I purchased this diffuser as a gift for a coworker, but tested it before I gave it to her since the diffuser I bought myself did not work well (Eco Ultrasonic TM Diffuser). This PureSpa diffuser is small and will be attractive and unobtrusive in my friend's office. It is slender, but not top heavy, so it shouldn't get knocked over. It is nearly silent when running with a barely audible whir and occasional soft dripping noises from condensation falling back down from inside the cover. Compared to the Eco diffuser which I could only smell the scent with my face right in the water vapor, I actually smell the 6 drops of essential oil using this PureSpa from at least 10 feet away. For a small diffuser, this is perfect and it functions exactly as described. I feel like the difference may be that with the PureSpa, the vapor is not as visible and clearly dissipates up and into the air. With the Eco, you could see more vapor which appeared heavier (i.e. arched up slightly then straight down towards the floor), and didn't seem to dissipate up. Perhaps the water droplets are smaller with the PureSpa, as they should be. The two oils I used are fairly subtle (jasmine & sweet orange), so I can imagine that stronger scents could be smelled even farther away. I did use tepid water as advised in the instructions, so I can't comment on whether cold water works as well. The lights on this unit are pretty and flicker a little. I think what I'm perceiving as flickering is just the water vapor moving in front of the light, not a problem with the light. I really like the fact that this diffuser has just one button (mist on no light, mist on with changing lights, mist and light off). Even though you can't leave the light on one solid color, I'm fine with that since it means you don't have to click the button a bunch of times to cycle through all the colors (my friend likely won't use the light at all). Just be advised that the outer cover doesn't twist to lock on (just picks straight up). So if you want to pick up this unit with water in it, make sure to take the outer cover off first. I will provide an update after this unit has been used for a while to comment on quality of construction. I like this little diffuser so much that I just purchased the PureSpa Deluxe which has a larger water capacity than this smaller PureSpa diffuser that I'm currently reviewing. I am returning my useless Eco diffuser which cost twice as much as the PureSpa diffusers.