Sophie has taken an interest in using the potty, so we are in potty training mode full-force. This was the age when we potty-trained Ella, and she was so easy compared to Brock. As long as I make sure to take Sophie potty every half hour, she goes and does awesome! However, I sometimes get tied up doing other things, and we end up with potty pants. Luckily for my carpet, we have nifty training undies that are so thick that the potty doesn't come through.
Pull-ups never worked for us. With all three of our kids, they had to feel that they were wet and couldn't stand to be in potty pants. It has worked for us all three times. It makes for a bit more laundry, but it seems to be what works for them.