I have had 20+ drama free sales through Armslist over the last couple months and most of those buyers had never heard of MGO. This isn't a knock on MGO at all but more of an acknowledgement of the reach that Armlist has gotten by being in the news and coming up on google searches.
No scam attempts, no sketchy buyers, no drama, etc. If the site does survive I really hope they improve the performance/searching to make it more useful.