My Singer 500A Slant-O-Matic Rocketeer Sewing Machine is Working!

Hi!  Except for a few hiccups here and there, due mainly to operator's error, the Singer 500A Slant-O-Matic Rocketeer sewing machine is working and is making very nice stitches.  I am still learning about this machine.  Each sewing machine has its individual quirks and eccentricities.  Do you have any experience sewing with this great sewing machine?  If so please let me know at kathiego88 at gmail dot com.  Thank you!