It's pretty sturdy, and spacious for small to medium cats. I love the side compartments as they are really handy. I put my scarf over the top of its cold as it's very ventilated, it's good if you have a curious cat that wants to look, but one of my cats is a scaredy cat so I cover the carrier to make him feel more secure. Not a big deal though! It is handy to have the choice to roll it along the pavement if you have back problems, but you have to make sure the shoulder straps are out of the way, or they end up dragging. All in all I am happy with the product and the price! I have two in total, I  have 3 cats ;)