First DS was 20 months dry and clean by day. He got it very quickly. I can't remember what age he stopped wearing night time pull ups, but he would have the occasional wee accident at night until he was five or six. Never had any poo accidents from memory, and neither did the others.
The others I started potty training around their 2nd birthdays at the latest, probably earlier but I can't remember specifically. I didn't have any major issues with any of them. Pull Ups at night were a thing until they were 3.