This is a very bad product:
The temperature of the wax is not constant.
Risk of burns is because the device is overheated it does not heat sufficiently. You will therefore have to suchauffer wax before cool.
The second vessel is no point: there is no system that allows the filter to be carried out in height (so that the filtered wax falls into the tank). Either you put everywhere, or you do not filter.
Impossible anyway to change the wax without putting everywhere: so do not filter, and directly discard the used wax.
The buttons are not absolutely precise, it is just a plastic knob. Suffice to say that it's more than rudimentary.
There is no lip to properly scrape the wooden spatula
In summary, as disadvantages, no positive. Keep your money, even at that price it's too expensive paid!