After my 24-105L's ribbon failed again (not uncommon it seems)

I am thinking of not wasting any more money on a repair that will last <12 months.

I am thinking of the 24-70 L...

Now, before I go this way, can I ask if anyone knows if this lens is somehow afflicted with the same (or similar) issues (or any known issues at all).?

I am really hoping to not buy another dud.

Thanks

Scotty