I have a Chihuahua mix, Riley, who has a bad habit of raiding the cats litterboxes and leaving "presents" on the sofas.  I put this gate up to block off the side of the room where the litterboxes are.  It is working to keep him out.  It is easy for humans to step over and cats to jump over.   Note: I have no doubt that Riley could climb over this gate if he wanted to.   I went thru 5 much bigger and taller pet gates to try to block him in the back part of the house while I was potty training him.  He climbed over all but one of them.  But, he doesn't try to climb this one.  If it was locking him in the back of the house, he probably would though.  I didn't use the screws to attach the feet, so they fall off every time I move the gate, which is a pain.  I wish I'd gone ahead and screwed them in when putting it together because now I can't find the screws.