I use this these sensors on both my full suspension mountain bike and my road bike. I also connect them to both my Garmin edge 820 and my Garmin Vivoactive Watch. Set up was really easy in both cases, and I haven't had an issue since.
Three bikes and one computer. I have installed this bundle on each of my bikes. All I have to do is mount the computer on the bike I want to ride that day and the computer syncs with the sensors and I am ready to go. They seem accurate and the battery is good for a year.
It is very easy to use, and pair with my Edge 520 plus and watch without any problem.
Like the new version which supports blue tooth, make it very flexible to connect to different devices. (Haven't tried the blue tooth feature yet, but definitely can pair with my phone)