I don't know if you would call it an advantage, just maybe a preference. I got a S&W 5906 a long time as one of my first semi auto. I also am a big fan of makarovs because of the history and sheer toughness of the gun. I then happened to fall in love with the looks and quality of the Beretta 84. I guess I just happen to get and like guns that have it. A lot of people say you do it backwards because you push it up to take the safety off, but I figure most of those people are used to 1911s and such.
I have guns with other designs (1911, CZ, ect) but I have a soft spot for lots of guns that happen to have slide mounted
