I have one with a name like that, but unfortunately these seem to be frequently cloned. I don't even know for sure that mine is genuine; fortunately, it works well enough. As others have noted, the eZS app is somewhat glitchy, but maybe im my case that's because I didn't spend enough money to get a decent dongle.
I wish the fly by night cloners would go away, even though I appreciate competition in the marketplace. When the cloners make their junk look like products that have earned their reputation, it distorts the market; the market can't really operate properly. Ordinarily, the junk products would get a well-deserved poor reputation, and their market share would wither away unless or until they improved quality. When you can't tell what you're buying, and it's not expensive enough to worry about fighting about it, there is a race to the bottom.