Although I didn't expect it, its quality is quite good!
The whole panel is made of good quality plastic.
I chose this one because I was looking for one with very little depth, and this one has the least depth on the market.
Spacious nonetheless, there is no space on the sides to run the cables towards the fuses, but there is empty space behind the rails to pass your wiring, which is convenient.
Inside, there is a grounding and neutral bar that are detachable and fit in the top and bottom parts.
Visually, it has a nice appearance and the front is screwable with four screws and has a perfect fit.
There is no back to come out and mount outside the panel. The rails are simply screwed inside the panel.
The only downside is that the panel does not have open slots on the top and bottom to pass the wiring through, and you have to open them yourself.