Not as good manufacturing quality of a high-end tower (it was not the goal), but the assembly of the elements is still well.
My biggest fear concerned the noise, but even if the power is heard, it is reasonable for use in an office. (It will be a little annoying to sleep with a room!)
A book for small configurations because no fans to ventilate the hard drives and extract heat from the casing (locations are still planned for a later addition)
My biggest disappointment remains on poverty screws provided with only 4 spacers for the motherboard (instead of 6 minimum required) and very few screws for hard disks or optical drives.
A therefore provide to purchase or recover!