- Familiarity: I've used it several times
I've just used this a few times now, but have no issues at all. It picks up the beat right away and is sensitive, consistent and accurate. The strap system is very comfortable and quick to put on or take off. I got this to go along with my 310XT. After uploading to Garmin Connect you have a ton of information (max heart rate, average, heat rate zone, percent of max, etc.) - pretty much everything you would want.