My javazon is currently 69 and this thing OWNS nightmare. I was really disappointed when I maxed LF that it's doing about 1-1.5k dmg but I throw the javs (eth titans) so dang fast I tear everything to shreads. I was extremely skeptical after my lightning trapsin because the trapsin's CB traps are so slow at killing bosses but charged strike let me kill baal in normal at level 43 in 9 hits I almost pooped my pants!
Anyways, I do not know how hell is going to be but I got an infinity to break LIs (you should probably add that to the guide) so hopefully I will be able to tear it up in hell as well. I like this build alot better than my godly hammerdin for norm/nm runs. The hammerdin is invincible and 11k dmg in mf gear of course 1-shots everything but LF clears rooms so much faster than the hammerdin, especially if I'm tombing my brother.
Anyways I'll come back after I get into my 80s and tell you what I think of hell. Honestly if nothing else this is a very nice change.
Oh yeah a suggestion, I heep tgods on main weapon and thunderstroke in my swap to kill bosses with (the -15% resist really upps the charge strike dmg) but to kill LIs until I put my infinity on my merc just use demon's arch for your weapon switch. They add fire/cold damage. It's not a ton but when you're jabbing away every bit helps.