I've owned my 5S for about a month now. Love it! I use it a lot for golf. Overall, it does a great job. However, two things I would love to see...
1. There is no option to see hazards on a hole. I owned a Garmin X40 prior to this (a $200 watch) and it would show things like how far it is to the water, traps, etc. I miss that feature.
2. Minor issue but would love it if I could re-order the options when in golf mode. For example, I access the scorecard a lot. However, I have to push the down arrow four times whenever I want to pull up the scorecard. Conversely, the very first option is changing the hole location which I never use. If I could move the features I use the most to the top, I wouldn't have to scroll through the menu as much which would save time.
Other than those two things, it's been a great watch for me thus far. Great size, attractive watch to wear in business settings or during activities like golf or running.