I would say that this box is fine for light-duty applications.  If you plan on mounting heavy gear in it, look elsewhere.  Note that I am a guitarist/keyboardist and not a DJ, so my needs may be different than DJs in terms of the gear used on a gig.  I need to haul a mixer, power amp, Eleven Rack, power conditioner, and effects units.

My primary objection is that there are no "real" rack rails (i.e. metal rack rails).  The rails in this box are made of heavy plastic and are molded into the construction.  Screws are provided, but they aren't standard rack screws.  They are more like wood screws so that they can dig into the plastic holes in the "rails".

My unit wasn't wide enough at the top and bottom to provide a proper fit to my gear.  In the middle, the "rails" tend to bulge inward.  I got my gear in, but it was a bit of a chore.  I had planned to mount my Mackie 1202-VLZ3 on top and everything else on the bottom.  Given the poor quality "rails", I did not think that my heavy RAMSA power amp would work well in the upper portion of the lower rack.  I could not fit it into the very bottom rack space because of the inconsistent construction of this unit.  My recommendation is to place all of your gear before screwing it all in to allow for the flexing of the "rails".

In the end, I mounted the mixer up top and the power amp behind it.  This did not leave room to attach standard 1/4" plugs into the back of the mixer, so I will have to buy some right-angle patch cables to make everything fit.  The lower rack holds a Sonic Maximizer, power conditioner, and an Eleven Rack with room to spare.

There are some things that I like about this box.  For one, it's not that heavy and it's quite durable.  With my gear in it, it is  quite a load and the handles work well for two people to carry the box.  The cover is light and will only protect against dust and light hits, but it works well for what it is.  If you need a hard cover, move up into something else.  For the low price, this works fairly well as a light-duty unit.  If you are playing out a lot, invest in a better box.  I plan to move into something else and keep this in my studio to sit on top of another rack unit.  It will work very well in that application and the  light cover is perfect for keeping dust out of pots and faders.
I would say that this box is fine for light-duty applications. If you plan on mounting heavy gear in it, look elsewhere. Note that I am a guitarist/keyboardist and not a DJ, so my needs may be different than DJs in terms of the gear used on a gig. I need to haul a mixer, power amp, Eleven Rack, power conditioner, and effects units. My primary objection is that there are no "real" rack rails (i. e. metal rack rails). The rails in this box are made of heavy plastic and are molded into the construction. Screws are provided, but they aren't standard rack screws. They are more like wood screws so that they can dig into the plastic holes in the "rails". My unit wasn't wide enough at the top and bottom to provide a proper fit to my gear. In the middle, the "rails" tend to bulge inward. I got my gear in, but it was a bit of a chore. I had planned to mount my Mackie 1202-VLZ3 on top and everything else on the bottom. Given the poor quality "rails", I did not think that my heavy RAMSA power amp would work well in the upper portion of the lower rack. I could not fit it into the very bottom rack space because of the inconsistent construction of this unit. My recommendation is to place all of your gear before screwing it all in to allow for the flexing of the "rails". In the end, I mounted the mixer up top and the power amp behind it. This did not leave room to attach standard 1/4" plugs into the back of the mixer, so I will have to buy some right-angle patch cables to make everything fit. The lower rack holds a Sonic Maximizer, power conditioner, and an Eleven Rack with room to spare. There are some things that I like about this box. For one, it's not that heavy and it's quite durable. With my gear in it, it is  quite a load and the handles work well for two people to carry the box. The cover is light and will only protect against dust and light hits, but it works well for what it is. If you need a hard cover, move up into something else. For the low price, this works fairly well as a light-duty unit. If you are playing out a lot, invest in a better box. I plan to move into something else and keep this in my studio to sit on top of another rack unit. It will work very well in that application and the  light cover is perfect for keeping dust out of pots and faders.