Product review (4 stars): Does the trick
I definitely wanted an on-the-go option for my 2-year old.  This potty does the trick and is compact enough to keep in the car.  It is definitely not compact enough to fit in my diaper bag (I can't imagine a diaper bag large enough for this item), but I can easily throw it in the bottom of my stroller.  My toddler has used it several times with no issues - and the little bags are easy to use and then easily throw away!  I have not seen a better product out there, I would buy this one again.