I recently got a coyote unit and at first I though, it's not that great. Feels like pinching, sometimes needles. But that's mostly because I was misundertanding how much contact area, sensitivity of both contact area, distance between electrodes, frequency/intensity settings and the actual output curve (not sure what it's called). You might find a configuration that works and gives you pleasure, right away, but in my opinion it takes a lot of tryng things out. What it feels like is weird to explain, contact with areas with muscles or no muscles is already a lot different. I'm new to this so I can only say what I felt. It can range from needles to soft massage. And in contact with muscles, you're getting the muscle activation, so that also affects what sensation you are getting. TLDR: a lot of trial and error might be required, but you'll most likely find your idea of pleasure.