We started PT DD about 10-12 months ago because she refused to wear her nappies any more.
At first it was slow progress but within 4-6 weeks she was up to 80% especially at home so we persisted.
She never got the hang of poo and did all of them basically in her night or nap time nappy.
Now she's just over 3 and honestly is no better. Or even worse.
At home I can get her to stay dry all day, including at activities/friends houses/out in buggy or car. So maybe 90-95% with me. DH doesn't have as much luck but she's probably 80% with him. Nursery the absolute best ever in her current room is 80%. It's the 3y+ room and it's very busy, she gets distracted, lower ratios etc - she was actually better before she moved up in May.
We've tried going commando again, going without pants again under dresses, praising, ignoring, reminding, not reminding, taking her, letting her go on her own... Heelp!
But now she's just started being without nappies at night and is 100% dry so far a week in! She's obviously got the capacity (no wetting while asleep) but also happily wakes up, and comes to get us to go to the loo.
The only thing we are not going to do is go back to nappies - we'll keep a few on hand for illness but she CAN use the loo but just DOESN'T.