I bought this on kind of an impulse in order to take advantage of a sale, so I hadn't had a chance to read reviews beforehand, and now I'm on the fence about returning it. It looks good, works well, charges fairly quickly, and doesn't run hot or cause my phone to heat up like some other wireless chargers do. However, getting it to make a solid connection on the first try is a bit like playing nickle slots at the casino. If at first you don't succeed, try, try, try, try, try, try... oh, there it goes. Never mind. Try, try, there, got it!
I'm not sure if the problem is with the charger, my phone (Galaxy S9+), or the thick case I have on for protection (Otterbox Defender series), but I think that in the two weeks I've been using this charger, I've gotten a first time connection all of twice. Way more often than not I havce to pick the phone up and set it down three, four, or sometimes seven times, slightly repositioning it each time, until the charging light stays lit for more than 15 seconds before flashing at me and my phone stating, "Wireless charging paused."
I really, really do like this charger. And if it made a good connection on the first attempt even 80% of the time I'd probably not have a bad thing to say about it. But the fact that it's maybe only about 5% of the time that I'm connecting on the first try that is making me think this isn't working out.
As a comparison, even with my big ol' Otterbox case on, my wife's Mophie wireless charger connected with my phone and charged it on the first attempt on all three attempts. The downside was that the back of the case was warm to the touch when I removed it from the charger, so I definitely feel safer using the Samsung charger. So... choose your battles carefully, I guess. 3 stars out of 5.