LiliArch

It's generally not an issue these days, but at launch some class quests were extremely difficult without good gear and/or being overlevelled. The Jedi Knight's final class quest at 50 was famously virtually impossible to solo at launch.

Oh, right, THAT one. Heh. It was pretty frustrating, yes. I had to set T7 as Tank to cheat him being attacked with that one-hit-kill Force push instead of me, so yes, I can see your point. (I finished Smuggler and Knight as F2P so end battles were lvl-50.) They seem to have changed something there, indeed, Sith final class battles are ridiculously easy (since they're on Korriban, so final bosses are somewhat lvl 12...) which looks pretty badass but less convincing.

I'd also add regarding grouping for class quests that if nothing else it helps expedite the process, especially at lower levels. TOR's design is typically just endless corridors of trash mobs with a cutscene and a boss mob at the end, so having someone else along (especially with higher level AoE abilities) can really speed things up.