The “issue” stems from the small bearings used in the hubs, 5/32”. It has been said that this increases the rate of wear in the cups and cones on the hub. Regular maintenance can prevent these issues.
The other issue is that you will need a special tool to remove the helicomatic freewheel that is becoming harder/pricier to find.
Don’t let it bother you. Sounds like you got a good deal.
Pics!