This is a very nice diffuser! Mist output is very good, Reservoir holds a good amount of water and the changing lights are atheistically pleasing. This is my second diffuser as the first one was faulty. I contacted the seller and they went above and beyond through communicating with me and replacing my faulty unit. Second diffuser works like a charm! Their customer service is excellent! Their shipping is super fast too! It has been a pleasure to work with them! I would definitely recommend this diffuser to someone else!