The convenience of just putting down the phone to charge is worth it for me.. the case on my phone is one where the ports have a flap, so I'd always have to pull the flap to charge, with the wirelss I just put it down and I'm good to go.
In terms of speed the wall charger Maybe charges 12 mins faster so not a big deal for me.
The only drawback I see with wireless charge is that you can't really charge and use the device at the same time., you can but it's not as easy as with the wall charger.
Other than that I recommend it to anyone.