I installed one of these in a warehouse for inventory management.  No fan means no dust on the inside.  I followed some other suggestions are ran a malware app on it before unleashing it.  It did find and delete some stuff.  After that, it's run like a champ.  It's not built for speed; it's built for low power consumption, low heat, and questionable environments.  The wifi worked perfectly.  It's nice that it came with an OS pre-installed.  That being said, run a malware app before you put anything else on it.