I’ve had it for about a year and all-in-all I would recommend.
First and most importantly, it’s much more reliable than I expected it would be. Granted I came in with moderate expectations that it would reliably pick up shots based on the reviews, I’m happy with that part. My only quibbles are that I receive a few dead sensors when I got it (which Arccos was quick to replace) and it doesn’t always work great in low light conditions (which is something they disclose - as part of the sensor on a specific club’s ability to “wake up” is based on ambient light. Makes twightlight rounds a little tricky.
As a GPS device it works great and I do find the “true yardage” feature to be helpful. The statistical stuff is also pretty awesome, even for an average golfer like me, though to truly get the best out of it, it’s not completely automatic (making sure it tracks sand shots, accurately placing the location of the pin on the green, making sure putting distances are correct, etc.). The statistical stuff is also cool for those that play the same course a lot - as it’s very easy to see where you miss the most often (though for most this is probably a confirmation of what you think rather than totally new information).
Similarly, the yardages by club is interesting though is only so helpful in the windy environment in which I typically play. Can definitely be a bit humbling to see how short I hit the ball (especially in the winter). I also learned I’m a much better putter and a much crappier driver of the golf ball than I thought. Interesting to see how this translates to Arccos’ “handicap” for each facet of the game (a 6 for putting and a 21 for driving ) While this wasn’t totally surprising, it is interesting to see a number put on it. I also like the ability to visually see how I play a specific hole over time (it will overlay all of your shots on a specific hole over X amount of time) - though it doesn’t always help me solve the common miss.