Left door came off in my hand when I opened it.  The two bottom door pin screws were MIA.  The two Right bottom door pin screws were not even hand tight and these screws were chamfered; why is the great unknown.
Placed door back on temporarily.  Sourced 4 new stainless pan head machine screws, applied blue locktite and re-secured both doors post alining them and the appropriate reveal (gap).
I did not experience any peculiar loud noises on start up and have not heard any weird noises since, to date.
Settings are self explanatory and require no "manual" reference.
I have no complaint on light switch on right side only nor do I have issue with light "timing out" as some other reviewers had mentioned.
Aside from the unfinished assembly and having to source appropriate screws, the unit meet my expectations.