I have 2 Vikings also. Mine is the Lily that I have had about 12 years (I think?) and never a lick of trouble with it! My 2nd one was my Mom's which she bought used in the late 60's. When she passed away my step father was going to junk it; said it didnt work anymore. I brought it home gave it a good cleaning and it works like a charm. It has the cams for different stitches.
You shouldnt be disappointed if you get it! ESPECIALLY if it is FREE!!!!