Rattling exhaust heatshields are common on them. steel ty-wraps are a cheap and easy fix... A stiff gearshift is common, but not a major issue, new gearbox oil or a new linkage sorts it. Throttle cables can be sticky when cold, often due to poor routing. I think ford dealers are aware of this, and can re-route the cable to sort it. Otherwise, look for the same things as on any other car.
P.S. Dont expect it to be as quick as a clio 1*2 or a civic type-r, its heavier han both and has no more power than the clio.