We have the PetGear in large and it has two tethers for Khloe and Couver. We are pretty happy with it... It has a removable cover that you can wash (it says not to, but we have
). The only thing is it's kind of a pain to take in and out of the car. It is not the easiest to strap in, so I try not to move it if I can avoid it.
The Snoozer looks pretty soft and comfy. Because the PetGear seat isn't super soft, I always have a blanket (or two) on it so they can nest and make a nice bed for themselves.