Well built and nicely designed, once assembled this is a very sturdy unit. You may have some challenges putting this together - a few tips: #1 - if you buy the rivet gun with this unit, don't use the rivets that come with the gun - use the ones in the main hardware bag. The rivet gun comes with three rivet sizes and while the largest rivets are identical to the ones supplied to assemble the unit, the smaller ones are not. We found this out after running out of the large and starting to use the small. #2 - There are videos on the web that show how this unit is put together. It is not for the 'requires assembly' challenged. If you have a friend to help, it's much easier and be careful because some pieces have very sharp edges (these are covered once the unit is put together, most other edges are rolled). #3 - A note on the videos - assembly may not exactly match the unit you have (e.g. 10, 8, 6 hole) but you'll get the idea. #4 - The instructions packed with the 8 hole unit did not warn us about leaving out the rivets in the top back of the unit in order to (later) mount the hanging straps. The video does say this. I'm giving this unit 4 stars instead of 5 because the video demo of the unit showed it with the nest pads (Plastic Rollout Nest Pad - RO-NP) but the unit did not ship with them. It took a couple of e-mails and I received a phone call saying I would have to order the pads. Considering the price, you'd think these would be thrown in but just a warning to order these if you're buying this unit.