i use it for a guitar gear: 3U drawer, 2U amplifier, 1U wireless system
pros
+ thick sturdy plywood (10mm)
+ rails in back
cons
- slight imperfections such as skewed rails (just 3mm or less, nothing annoying), lid is slightly of the axis
In overall, the best price/value ratio i found here for the 6U. It's not perfect, but it's good.