Is a fast punisher but the short range makes F3,3 better for punishing IMO as many punishable moves push you a bit and 1,1 won't connect.
In Cryomancer some time ago I realized there is a use of 1,1,1 for 37% damage in the corner (1 bar): 1,1,1~EXBOMB~B2~1~F4,2,1+3. Which is the most damage I've been able to find out of our faster punisher, but again, 1 has very short range and it's not always advisable to punish with it.