I played SWTOR on sunday and started the day before that . I'm fairly sure I've killed at least a thousand organisms on that game as the Jedi consular I played as, it's just mindless killing/grinding. I'm at level 11. How far did you get into it before quitting?
I had a Level 32 Sith Inquisitor, Level 24 (I think) Jedi Guardian, both of which I mained and a Level 1 Bounty Hunter and a Level 1 Jedi consular.
All play was 100% free to play. I found the community severely unfriendly and the difficulty spikes incredibly testing. The story is good, but if the gameplay isn't that great, and the community treats you like sh*t... it won't matter how well written it is.
I play this game too much and generally avoid group content that is harder than heroics and still find the game pretty fun. At first I played the game my first time with a sith inquisitor and solo'd it without doing any group stuff and enjoyed it. But I actually found I started to enjoy grouping a bit in the game. But even you hate destroying tons of enemies in the game and hate the MMORPG aspects such as grouping it is still possible to have fun with the game and here's how:
Play as a tank or healer with stealth and avoid attacking mobs unless you get a bonus for destroying a certain number of enemies. Turn off the general chat and block guild/group invites. And you got a single player RPG that is better paced than a lot of older RPGS.
You may think a Tank or Healer would be more tedious than playing a DPS when it comes to solo content but not really if you use stealth to avoid most of the mobs and trash mobs are still quickly killed by a Tank or healer. Also, a tank with healing companion or playing as a healer makes the boss fights in the solo content much easier. Use the xp boosts items (which you get throughout the game for doing certain missions) only after you got a bunch of quests done cause most of the XP comes from doing quests. You can also do some heroics sololy easily this way as well helping to get better gear and leveling faster. If you follow this strategy you should be able to avoid most of the mobs, probably be over leveled even when playing F2P and be able to skip the harder solo content at the end of the game and just finish up the class story stuff.
The Imperial Agent's class actually got a better story than most single player RPGs. And with the strategy above the game is easier and faster paced than a lot of the older single player RPGs including some of the classics on this site.The one huge problem with this game compared to older single player RPGs is the linear worlds with lack of npcs to talk to in towns. And only having the choices in story phases have any effect on later phases but not on the overall world in the game. And the immersion breaking of seeing tons of other characters doing the same thing as your character yet having an individualized class story.