I bought 2 of them but I'm going to be returning them. The microphone on the bottom is very uncomfortable when resting your arm on a table or desk. It also scratches terribly easily and quickly. The metal on the top of the watch also easily marks. The app to customize watch faces stops working or at least did for me after a couple days and I have read reports of it doing the same for other people. I had to move my gmail email to the Samsung email app and stop using the Gmail app because the watch does not correctly notify with any detail for the Gmail app. It also does not currently provide any detailed reporting for Facebook or Twitter or many other apps including hangouts. I had several instances of the speaker being very distorted during normal use especially when using s voice. I don't know what they were thinking by putting the speaker on the backside of the watch but I guess I should not be surprised given that is where they usually put the speaker on phones as well. Samsung does not seem to grasp what a speaker is 4. My wife had a lot of trouble with her gear recognizing her spoken commands.
When I actually used the feature I had decent results making and receiving phone calls via the watch. It also is very convenient for alerts about texts and email that comes into the Samsung email app. But not very useful for alerts for other apps. I got decent battery life in that using today as an example using the watch from 6 a.m. Until 10 a.m. The battery was at 70 percent when I took it off. I guess it depends on what you are looking for in the watch. Personally I have come to the decision that I need a watch that is more comfortable with a replaceable band and which is able to be used on more than just Samsung phones. I don't want my watch to be a factor when I pick what phone I want to use.