I have an intermediate and a small for my border collie. The quality is obvious. I don't like the crates for my two labs-I feel like they are too small and I don't like the ventilation for them. The BC loves it but border collies love dark little dens. I bought the fan but returned it-it was SUPER loud. Since my crates are in my van it made a difference. Wouldn't matter if they were in the back of a truck. Love the company-wish every company had such great products and customer service.