The scaff bar was alarming; when the bolts were put in we used the scaff bar to sound test the rock - the ledge the scaff bar was "supported by" gave a very dull clonk, signifying that the chunk of rock it was resting on wasn't attached to anything at all.
The bolts provide good rigging options and a free-hanging ladder is easily achieved from a y-hang (rigged to your personal preference); clipping a ladder directly into either bolt probably would result in a compromised hang for the ladder, if you choose to do it that way.