Top positive review
Excellent product, good value and works well!
11 April 2017
This is a good device. Easy to fix on your bike and does what it says on the tin. Personally I'm not using Bluetooth at all but there are lots of others who are. I use ANT+ with Garmin devices and my Fenix watch and Edge 520 pair with this flawlessly, and I also have a Powerpod power meter (which is also excellent as well), and it paired with this first time and has had no issues with it. I also have a Tacx smart trainer which is using ANT+ with Tacx TTS 4.0 software and a PC with Tacx ANT dongle, and again... no issues. It works perfectly.
In fact I like these so much that I have just put in an order for another for my other bike, and I have tried other sensors... I had a Wahoo one which had to be returned. This is the best so far! If you want cadence and speed sensing together it makes no sense to buy separate units with two sets of coin cells. Yes, you have magnets with this device but they are low profile and really not intrusive. It is easy to zip tie on everything so that nothing falls off. There is a good rubber bungee supplied but you can use both zip ties and rubber for extra safety, especially useful on UK roads. If you're elsewhere in the world where people maintain roads properly this may not be necessary!
You can get occasional bad data spikes but it is no problem to fix that with a freeware program like Golden Cheetah if you care about that sort of thing. In a couple of months of riding I've only noticed that a couple of times, and that's really no big deal. Its not clear if its the Garmin hardware getting its reception wrong or this device sending a scrambled message. Either way, I'd expect the same with a big brand sensor, and its not a major impact on your stats.