Kind of a broad question. This just sounds like some autotune with a relatively quick retune speed.
Always remember that autotune simply tunes and has that effect to the sound - it is never a replacement for a good performance, nor can it make a bad performance sound like a good one.
This is a solid performance with a little autotune. The inflections on his vocals, the attitude, etc. Always start with a good performance, then tune it to get a great sound.