I've been wondering about that also. I am a ranged rogue (typical Gris agi build, light weap/shield, meat shield take blows for me while I snipe), its my first playthrough.
I am on the quest now that takes you to the place where the J. Bow is, so I should have it soon. I know at lvl 13 it will be much better than what I have now (poisonous shortbow). But in looking at some end game bows, Jesters seems not nearly as good. I feel Jesters should have same stats as now but instead of 1-1 it should be like 1-2, or 1-3. Even with bonuses J. Bow still seems underwhelming.
Honestly I had always knew about the bow but never actually looked at the stats; when I saw it only has a 1-1, even with 18 speed, I got disappointed.
Maybe once I actually have it I will reform my position again. But for now doesnt seem anything too great for end game anyway.