“WARNING!!! DO NOT TRUST THE DESCRIPTION STATING THE POLARITY IS SET A CERTAIN WAY!
Despite the product description clearly stating that the polarity of the JST connector is set a certain way (compatible with the Adafruit products) the one that I received had the reverse polarity! It is easy to change yourself, but if you are a beginner and do not check, you might fry whatever board you connect it to.
Other than that, all was fine. But, it is a pretty big mistake so deserved the low rating, especially since the customer support first argued back (saying the product description never claimed the polarity to be one way or the other) and then went silent (when I sent them screenshots of the product description clearly stating it)”