Yep. It is awesome! And all it took was one day of us refusing to put a diaper on him. He would beg and cry for a diaper. I had a stack of underwear and clothes at the end of the day that needed to be washed - but wa-laa! Success! For the last 2 days he has worn underwear the whole day and has woke up with a totally dry diaper in the morn. It is so darling to see him run to the potty yelling, "I have to go potty!" all the time.
No more buying diapers. No more buying tons of wipes and poopy diaper bags. No more jammies that smell like pee in the morning. No more stinky garage! I am in heaven. And he is so proud!
Apparently 4 years and 3 months was the magic age for Carson! Whew!