Any #opensource #linux people using #Garmin watches such as the Instinct 2 series?  Someone recommended these watches.

I'm looking something to use with training & as a daily watch to help me live more healthy. 

What's your experience? Which software do you use to analyse the data? How's the support from Garmin for Linux regarding updates & such? Can you use it without any connection to proprietary apps? 

Boosts appreciated!