I ECed my first daughter starting at 6 months, and at a year she was clearly signing and only wore diapers for long trips etc. I think it took a month before she started to get it.
I wanted to start right away with DD2 but I felt way too overwhelmed. Just this week I decided it was time to start. This is the 4th day doing it and each time I have put her on the potty she has peed right away!!! Right from day 1 we have had about 3-4 catches a day.
Anyways I am feeling really motivated now!! I remember reading so much negative stuff about starting late, but it worked with my first and now my second is picking it up. :)