I've often found Juhani to be useful under Bastila lead in 3v3. She has sneaky high physical damage, and combined with Bastila lead's 35% extra damage, Juhani's extra damage against debuffed enemies, and offense up, she can do some decent damage. If you mod her for health and defense she will also be thicc.
I've gotten holds with squads like Bastila, Juhani, Ezra/Hermit Yoda/Barriss/etc.
The only other time I use her is when my Revan is a bit slower than an opponent and I need that extra 5 speed from the dual OR/Jedi tags.
In retrospect I wish I had geared Canderous, but I do get some utility from Juhani on occasion.
