We love this crate’s sliding French doors on the long side as we can leave it open during the day  there’s no door to bump into. I have had to add a strong carabiner to one door as the dog figured out how to slide the locked doors to one side  got out. 
The handle on top is super for the times you need to move it for cleaning.  
We received theis with a tray that had a broken corner, but since we use the Gorilla Ballistic Tough Orthopedic Dog Crate Pad™ that fastness to the bottom of the crate with Velcro straps (httpsgorilladogbeds.comproductgorilla-ballistic-kennel-crate-pads  ⬅️ you  to get that  an extra cover as it is awesome!) we didn’t need the tray. Comes flat  is fairly easy to get it ready to use. 5 minutes  you’re ready to introduce your dog  to his new den (especially with the matching Gorilla crate cover )