Totally reliable, great product. Amazing especially if you're a NYC mommy, and need to get your toddler to a potty when you're on the go, or playing at a public park and want to avoid icky public bathrooms. The biodegradable version of this product works just as well as the original. I love that they are thin but sturdy (never have had one rip) so I can fit a lot of them in my diaper bag[...] 4 stars and not 5 only because these seem like they've been priced a little high.
I keep the seat and liners in the cargo area of my Suburban; no more dragging all of the kids into nasty public restrooms so that everyone can touch it all. The liners have never leaked, fit the seat well and hold the potty mess until we find a trash can.