Some owners had a difficult time with the assembly instructions, claiming they needed to be clearer. This crate is also so big that the only way to really move it is to disassemble the entire unit, so not great for those who want a crate they can easily relocate. And as always, there were a few dogs who managed to make quick work of the crate, although this was relatively uncommon.
The reason this crate doesn't rank as highly as the Empire is that it's not quite as escape-proof. I think the top door might be a weak point, so you may want to use a zip tie to stop it opening if you don't plan on using it. The most determined and strongest chewers may be able to attack the bars though - so for these dogs look for sheet-walled crates instead.
The Prevue Pet Products Home-On-The-Go Single Door Dog Crate is all about providing your pet with the highest level of safety and comfort. Designed to withstand years of use, this dog crate is constructed from heavy-gauge mesh for security and stability, while the powder-coated black finish is non-toxic, durable, and easy to clean. The large front door features a heavier framework plus security locks to prevent your pup from getting out. An extra-deep 1.5-inch plastic pan with rounded corners prevents leaks, contains mess, and can be removed separately for convenient ...
Update: We traveled quite a bit this holiday season and this portable crate was absolutely awesome! I have seen some reviews about bad zippers but suspect it's due to misuse. You have to raise each side before zipping it -- just common sense, people. Otherwise, there is too much pressure on the zipper. I think zippers on this crate are sturdy. Another suggestion is placing your dog's favorite bed inside. The crate (we have extra large) has plenty of room to add an extra large fluffy dog bed our dog loves. Because the crate folds flat, we place the crate in the cargo area and cover it with dog's bed when on the road. The dog sprawls like a queen! :) When we get to the destination, we unfold the crate, throw the bed inside, and voila -- cozy house that ... full review