I needed a rack for a PA installation job I was working on and this fits the bill perfectly. It is solid and well made.
The depth of the rack rails is adjustable, although it doesn't say on the listing that the maximum you can set back the rails from the front edge is 55mm (this is only so it covers up some pre-drilled holes).
Its like building a piece of ikea furniture, but with slightly better fixings.
Great value rack and I would definitely buy another if needed. I was going to build an MDF rack but for this price it's not worthing the effort - this definitely looks better!