Instruct: Classify a given Amazon review as either positive or negative.
Query: Not that great

Maybe it depends on the car, but I couldn't get it tight enough in my SUV to prevent the dogs from knocking it down. It also probably depends on the dog. If the dog really wants to get past it, they will. If you have a more mellow dog who will be satisfied with a "psychological barrier", this would be ok. Oh, and as a previous reviewer mentioned, the "trombone" style sides slide easily back and forth, I had to get some hose clamps to keep them in place.