I think it's important to know how you want to use the carrier and make sure to get the right carrier for the job.
This pac-o-play looks amazing for outings and walks, but would it be appropriate for overnight or extended stay?
My tiny dogs have a variety of carriers depending on what we are doing....nice leather carry bag for outings (and pretending I do not have a dog), hard sided crate for sleeping and a softsided foldable crate for overnight travel.