Wireless charger's use? Let's see, plug it and put it on your desk or your bed or wherever you want. Now you back home from work and you want to charge it but you have another more important thing to do. What to do with a wired charger? Find the charger, look for correct port position and plug it in. With wireless? Put down and done :|
Just in my case, I put my wireless charger on my bed. So right after I turn off the light, go to my bed and want to charge my phone, I'll just have to "throw" it on the pad without bothering about turning light on just to plug the wired charger then turn it off again, you see? Don't have to look. Not to mention, the LED light on wireless charger's more accurate than the battery status on phone.