My son started potty training at 20 months and was done at 23 months. We did elimination communication from 6 months on (wish I would've discovered it sooner) and because I did it so late, I had accepted the fact that I'd be changing diapers until at least three. I've read that we (people) train them to go in the diapers and then it's not uncommon for it to take that long for them to have all the necessary skills to understand potty training. However I think the fact that we did do the "ec" (even though we were late) really helped. Here's the website where I discovered "ec" http://www.tribalbaby.org/ECindex.html . I also think it helped that I never pressured my son, or made an "issue" of it.
So at 20 months, my son watched Elmo's "Potty Time" and that very day he sat on his potty for the FIRST time. He peed in it from that day on and he had never even sat on it before. Over the next week we had to be attentive and teach him how to sit and wait for poop to come out. We had a few accidents as he learned to hold his pee, so he could make it to the toilet. BEING NAKED WAS KEY FOR THIS TIME. For the next 2 months, he was perfectly potty trained as long as he was naked and awake. We carried a potty everywhere we went (as I had watched my girlfriends do this) and had almost no accidents AS LONG AS HE WAS NAKED FROM THE WAIST DOWN. This part may be embarrassing to parents but my son is small and we just put unbuttoned onsies or long shirts on him so you couldn't "see". We live in a laid back small town and no one cared. Honestly if I didn't do this, we'd still be in diapers. Over this 2 month period, if I put pants on him, he'd forget and go potty in his pants. If he was awake, I didn't put a diaper on him, and I only put the diaper on at night after he'd fallen asleep. Mostly because he wouldn't let me... he was a "big boy" after all :).
So during the last month we started to grow into wearing pants (he's too skinny for the smallest undies they make) and reminding him that it wasn't a diaper. We had a few mistakes, but then at 23 months, he was totally done and potty trained. Even at night, that just kind of came as I would accidentally fall asleep before I could put the diaper on him and I think his muscles developed with the training. I put a tupperware container next to the bed and a couple of times he's woken me up to go. I could walk him to the bathroom, but I'm afraid it will wake him to the point of not wanting to go back to sleep, so this is easier and works for us. Oh yes, and from the beginning until now we cheer every time he goes... it's part of the fun for him. If others are around they have to cheer too :). He never tires of it... loves the kudos.
That's my story, good luck to you!