I haven't used it for the trails but the build quality is top notch including censor accuracy. More easy to manage bike data fields and from Garmin connect app. Totally a sophisticated bike computer with real time training data you can rely on.
I've been using Garmin products for a few years now and I've never had any problems. Super robust and reliable. I must also mention that the device is very easy to use while riding and battery life is great - what else could you want?