this review title is: not good and the content is: my unit must of been defective it boils the acetone it leaks and it has melted my on off button to where i cannot even use it anymore i have not contacted the seller but after writing this review i think it is the best thing so that they will be aware of what happened to the unit and hopefully i will get a replacement i did attach a photo to show the button and it even melted the temperature indicators plastic right off.there are other information for this review, one is this reviewer did purchase it and the other is 4 people think this review is helpful.