Purchased to replace a Garmin ANT Stick. Connected to my Lenovo Yoga (Win10 64bit). Windows found it with no problems. However, the Sufferfest application had to be restarted several times before it decided to play normally. Did a quick session with Sufferfest, all devices were stable including PowerTap C1, Wahoo TickerX, Wahoo speed sensor and Garmin cadence sensor. Everything is fine here!