Safe and sound
http://www.nasaspaceflight.com/2013/...nday-berthing/
In some ways, it has the kinds of problems you want to have, in that it shows how rugged your craft is--same with the engine that came apart in the last launch.
Knowing you have redundant thrusters, engine-out, etc.--and that you can brute force your way into salvaging a mission is far better than having to have a lesser vehicle with no margin have to perform perfectly every time.
There are good problems and bad problems.