this review title is: oils are great refilling is a struggle and the content is: i was so excited to get this product and am still using it i use it daily at least i would say it diffuses a moderate amount less than any other one i have had from walmart or young living but it still does the trick the oils smell wonderful and i have enjoyed them i find the amount of oils you receive in this bundle to be a big perk the downside of this diffuser is the top is difficult to remove it does not just pull off i have to use my fingernails to pry the top off and wiggle it the whole process is quite frustrating the top pieces have since come apart because of this i have not found any solution to this problem but if anyone knows of one please share.there are other information for this review, one is this reviewer did purchase it and the other is 0 people think this review is helpful.