Overall, it’s just what I needed. 
I have a big cat, who is fairly tall. I struggled to find something he could stand up in fully, and that would fit a large litter box but this is perfect. He was inside before it was even fully assembled. 
It is a little tricky to assemble, mine was missing a few screws and the directions are not as detailed as I would need. But was able to put it together in ~1.5 hours without assistance. 
Looks good, minor surface scuffs from shipping. 

It got here the day after I placed the order!