Because it has a semi-rigid bottom (which prevents seepage into and out of the cooler), I do have to contort it slightly to fit into the hatch. With a hard-sided cooler, this would be impossible, so I find it is a good blend between this and completely soft cooler that leaks.
The zippered pocket on the top of the lid is just big enough to fit a few granola bars and similar snacks that need not be kept cold.
It does a fair job a keeping the items inside cold, but is not as efficient as a hard cooler. I didn't expect it to be, anyways. The materials are of good quality and so far durable. I'm happy with my purchase.