People who should buy this watch are the ones who want the best fitness tracker, but stay away if you want the best smart watch. It has ton of sport functions and needs some practice until you utilize most capabilities - you really need to do ton of sport / be a data geek for this watch to worth it. The build is amazing, very robust and has an indestructible feeling. As expected, delivers great in any circumstances when doing sports, but in some cases HR reading might be inaccurate. Before buying, I recommend doing a research - recommend DC Rainmaker reviews / comparisons with other fitness trackers. Pros / cons I noticed so far are below.
Pro
Loads of functions
Very robust build, can't scratch it
Amazing battery life
Very fast and accurate GPS tracking
Great ANT+ pairing functionality
Great insights and data
Garmin Connect is the best app out there (very subjective)
Comfortable, but do try it - there are multiple sizes, not all fits everyone
Fairly fast recharge
Good readibility
No software/sync issues so far
Contro
It may be too much/complex for some
Price
Charger cable is a joke - would expect something more in this price range
HR reading during some activity may be inaccurate - recommend an HR strap (more money)
Wrist band feels a bit cheap - likely needs regular replacement after a while
Would be good to be able to link Garmin Connect to more external services
Quality watch faces are limited
Smart watch functionality is limited (with which I'm ok with)