Well, not yet, but we're getting ready! We're planning to start EC (in conjunction with cloth diapers) shortly after Little Kicker is born, so I was excited to buy these potties from IKEA. We'll keep one upstairs, one downstairs, one in the car, and one at Guh-guh and Grandpa's house. O is so excited about the potties. Her baby dolls have been using them, and she thought it was hilarious when she sat on one of them :)
After reading the comments, I realized I might need to clarify...the potties are for the new baby. Click on the EC link to read more about EC...it's very intriguing :) We used EC with O starting at about 10 months, and she's been potty trained since she was around 17 months old (although she still usually wears a diaper at night...her choice).