I have had quite a few pet carriers and I like this one because its very breathable, the cats can see me through it and the soft sides provide comfort.
Its also very economical and long lasting. Easy to clean and collapses for storage. This is one of my favorites.

Pros: easy to clean, room for cats to move, long wearing

Cons: heavy pets may not be as comfortable

I love this carrier much more than my old plasctic one. Very comfortable for me to carry and for my cats.

Pros: more comfy

Cons: none

Love this soft sided carrier. much easier to carry my cat in than the heavy plastic ones.

Pros: light weight

Cons: none

I tried one today at the shelter to bring a kitten to the vet and it worked great.

Pros: nice and easy to carry

Cons: difficult to disinfect

I prefer this over the hard case it is lighter andI can carry it on my sholder

Pros: easy to use

Cons: none