I find front mechs pretty easy to look after once they've been set up right on the seat tube/braze on. Whenever someone comes to the shed wanting help with the shifting not working or the chain falling off its usually just a matter of winding a barrel adjuster on the shifter in on a flat bar, or on the (externally mounted) braze on on the down tube, or adjusting the limit screws. Of course the more flashy frames no longer have a braze on for an external cable and a barrel adjuster, so unless you plug in an in line barrel adjuster on the cable itself, it is more difficult, but I can't pin the blame on that on the front mech itself.
Unlike the rear mech there's no hanger to get bent out of alignment so they've always been pretty well behaved in my experience. Only exception is for drop bar front brifters, which have failed internally on me (and warrantied).
I find front mechs pretty easy to look after once they've been set up right on the seat tube/braze on. Whenever someone comes to the shed wanting help with the shifting not working or the chain falling off its usually just a matter of winding a barrel adjuster on the shifter in on a flat bar, or on the (externally mounted) braze on on the down tube, or adjusting the limit screws. Of course the more flashy frames no longer have a braze on for an external cable and a barrel adjuster, so unless you plug in an in line barrel adjuster on the cable itself, it is more difficult, but I can't pin the blame on that on the front mech itself.
Unlike the rear mech there's no hanger to get bent out of alignment so they've always been pretty well behaved in my experience. Only exception is for drop bar front brifters, which have failed internally on me (and warrantied).