I started out much like you, as a customer or potential customer looking into electrical muscle stimulation suits. How do you know which suit to buy and from what company to buy from? I had the same questions and have purchased many suits from a few different manufacturers. I had to find what we considered to be the best. Looking for the best suit, at a good price, and made by a reputable company. We wanted a suit that had the most training options within the app and also simple to use. It took some time and energy but we found what we were looking for. I am pleased to have partnered with YDSTRONG and are currently promoting the YD 109 first generation EMS suit.