You've done extraordinarily well so far, but it's rather too bad of what do you know him as? Mr. Carter to pitchfork you two young things into an affair of this kind.
They have done extraordinarily well so far.
The condition of a long-lived asset is affected by its durability, the quality of its design and construction, its use, the adequacy of maintenance that has been performed, and many other factors,  accidents (an unforeseen and unplanned or unexpected event or circumstance), catastrophes (a tragic event), disasters (a sudden calamitous event bringing great damage, loss, or destruction), and obsolescence.