Long story short: I need a rec for a relatively compact but stable and splash-free potty ring. We have one of the ultra-compact folding ones but don't like it; I'm hoping there's something a tad smaller than the seats we use at home.
My kid uses the Ikea (http://www.ikea.com/us/en/catalog/products/10272788/) and Ubbi (https://smile.amazon.com/Ubbi-Adjustable-Trainer-Handles-Included/dp/B010FJ9PWE/) ones at home and the Bjorn seat (https://smile.amazon.com/gp/product/B0009PAN7Q/)at school. He's fine with all of them.
We have the OXO folding seat (similar to the Potette) for the diaper bag and my kid and I hate it. It is less stable than ideal and the design angles him such that pee gets everywhere. I borrowed a friend's Potette and didn't find it to be any better.
Our Ubbi seat isn't too bad to carry around, but, if there's something a little more compact, that'd make me a happy mama!