Between 3 and 4 stars. It should stay more stable. Nevertheless, I managed to save 50% - 60% of the hair.

While it looks as you see it in the pictures and the quality is okay, it could have had 2-3 extra velcro straps to fit better in the trunk and stay in place. It is very easy for the velcro to come off, especially from the sides, with a dog in the back. At 35 that I bought it, I don't consider it very value for money, although it does its job.