"Alpine" design, with closer spacing between most of the sprockets for efficient cruising, and the huge 34-tooth "bail-out" gear for the tough hills. This setup looks funny on paper, but works great in practice!
It is generally good practice to replace the chain when you replace the freewheel.
I live in the hills and value getting to the top over smoothness. Except for the jump to the 34, it's a smooth performer. I'm using it on a 1966 Carlton International with full Campy equipment. Yes it treaded on fine! To my additional surprise the old Record derailer still worked all the gears and still kept the chain tight. Just an odd tip, I use automotive spray-on wax - not oil on the gears and chain to keep the dirt from sticking.
Bottom LineYes, I would recommend this to a friend