I love the size and the look of the wheely carrier. Although! the material is not as thick as i expected it to be, i could easily fit my hand carrier inside, which will make it a bit more secure if needed. Luckily! I have a cat that just likes to lie down, when taken to the vet . I haven't used it yet, except to try it out at home, but I am sure it will be okay. Easy for me, less stressful for my furry friend. I just want to add, cats like to move around at times, bungee adjustable strap hooks, around the carrier keeps it more sturdy.