Even I am not Lv50, I've played the game since beginning with a friend that have chosen a Jedi Sage.
In PVE his live is 300% easier than mine, send the companion and heal it until the end, mission accomplished risk free. I must fight my ***, use some "med kits" and manage my companion to get the same target as I get to assure it will be dead soon enough.
In PVP, I am always the primary and must be inside the enemy mob to deal damage. While he sits back healing and throwing stuff, when somebody approaches he just know them back. When the get up he can just turn on the "turbo mode" and run for safety.
I still like my class, but no doubt I have no tools to play different styles, it is straight forward melee DPS with no options to be creative. It lack tools or DPS.
Even if I get close range from a bounty hunter it is plenty of resources to avoid me sustaining my DPS. But I still normally win on those close combats.