We're 2 for 2 with #2. Peeing in the potty would be great too, but I'm thrilled that our newest potty is working so well! She's just 18 months old and I'm pretty impressed.
We've had a blue Baby Bjorn Potty Chair for a while and she sits on it while I go to the bathroom and some other times. We haven't had much success with getting her to use that potty. It's not too tall for her, but does seem more like a seat than a toilet for her.
Despite reviews that talked about it being too small, I decided to try a Baby Bjorn Little Potty. I'm so glad we did! It's definitely smaller, but it lets her sit in more of a squatting or crouching position. She seemed to feel like it was a good place to poop instead of a nice place to sit.
I highly recommend the Little Potty if you have a little one who isn't too huge. The simple design will prevent your little one from taking it apart and playing with the pieces (stack, unstack, stack, unstack). It's also too small for my 18-month old to stand in...unlike her Potty Chair.
My daughter is 32 inches tall and around 23 pounds, maybe with a couple of ounces. Tall and getting leaner every day. So many of the online reviews talk about using these little potties for really little babies doing Elimination Communication, so I opted to get the larger potty initially. If you want to compare sizes, Babies R Us carries them both in store, but you won't get the same color choices that you do online at Amazon and other places. I saw white (boring) and pink (girly) at my local BRU. I expect this simple, well-designed potty to last us for a while and I don't want to have a future child refuse to use it because boys don't use pink potties. I'm practical like that. And the blue matches my bathroom nicely.
Hopefully I'm not jinxing myself talking about our pottying success!