we have have this potty chair for the past 6 month for we now 2 yo son . we have not have any problem with it and I be not sure I understand some of the other complaint . we son be big for he age -lrb- over 30 lb and over 3 foot tall -rrb- and we have no problem with the size of the potty . I mean , the opening do not need to be huge . he regularly use it and we have find : the shield be effective , it be easy to clean as long as you clean it right away . no problem with smell or mess when cleaning . he end up sit on it for long period of time reading and think about pee , so the cushy seat be nice . we have also use it as a step stool and transfer the seat to the big potty -- nice feature when need . now , he position himself so that the shield fit right . we have also find that the potty have to be a bit away from the wall so that the top do not interfere with where he sit . we also have some simple one piece potty seat for other place in the house or travel , but this be a nice one to keep in he bathroom for those long potty session before take a bath . the true test be that he think of this one as he potty and never hesitate to sit and use it !