It's a nice small size and works perfectly with Ubuntu 18.04 LTS which is why I bought it.  Far faster and far, far quieter than my old desktop system.  Built it with 8 GB of RAM and 250 GB of M.2 SSD.  Amazing little box - everything works perfectly with Ubuntu.  There is a very slight bit of fan noise when it's under heavy load but it's way less noise than my old tower system.  I wholeheartedly recommend this product.