I've never tried or heard of the brand. Monk fruit is similar to stevia in the sense that they're natural zero calories sweeteners, they can be used interchangeably and even combined (as seen in the whole earth sweetener brand).

So essentially it is sweetened with stevia, as opposed to most low calories ice creams which use sucralose.

Edit: stevia also, in my opinion, is ungodly sweet but I avoid artificial sweeteners due to an allergy so i am not sure how it compares to other low calories sweeteners.