Make the steering quicker and could be twitchy in a straight line or when drafting 40 tonners!

They'll be good shocks, but pricey to rebuild, if need be. Strip spings and ensure damper still damps and no leaks afore purchase if you can.
Koni 'Dial-a-Rides' are fine and rebuildable, again its the rebuild costs that make you wince. But mine lasted well and very compliant yet controlled. Only used 1 up, no pillion.
I'm sure you'll get comments from others soon.
Regards, Bill.