I have a 1903 .32 and a 1908 .380 and they are great little pistols. I'm sure you'll love yours.
As far as the aftermarket mag issues, the problems seem to be mostly with the .380 mags. I bought extra Mec-gars for both of my pistols. The .380s jam constantly, but the .32s work like a champ. I understand that this is pretty common. So you should be ok.
I also agree that your pistol coming with an extra factory mag makes for a super sweet deal.