One of the best diffusers I've used.  I own several, so that's saying something.  I like the performance of this diffuser as well, or better, than the expensive Scentsy diffuser I bought.  The price for this diffuser is very reasonable.  It performs well, is easy to clean, and the lights are not distracting if used in the bedroom.  Automatic shutoff works great, and settings are easy to use.  I won't be tempted to buy another expensive trendy diffuser again - I've found my brand.