I had the Pet Pack with my 2014 Tit X which was fitted in October 2014 a little after car was delivered. It is very sturdy an includes a floor and protection for the boot lip. My Jack Russel is accommodated in comfort but she is small dog. I transported a Labrador for a short distance but space was quite restricted. I use a small door mat over the plastic floor.
I have the Pet Pack permanently in place and the tinted Windows allow reasonable privacy. I found a collapsible carrier which I got from Costco which allows me to place the week`s shop in the car.