My 2 cents worth after reading a whole host of issues with the game.
SWTOR has a ton of potential, its quite fun to play, that said I have cancelled my subscription. I do hope to come back to the game in a few months when/if they have sorted out it's many issues. Posting the here seems to get more of response (good or bad) than trying to contact Bioware directly.
The ones that 'bug' me the most, in no particular order are:
I don't feel like I am playing an MMO - Single player games with pvp don't need a monthly fee. (I know they will update it but i get updates to fix bugs with no fee from other games).
Buggy quests that I am unable to complete - weak
Talent trees are a bit rubbish (I choose a place for my nice little point but rarely excited about it)
PVP against level 50's (I know its changing but its still stupid, wholesale slaughter is not fun unless you are doing the slaughtering) <insert smart comment regarding people with early game access all nicely geared out already>
Difficulty in finding groups for flashpoints - no LFG, standing around in Fleet with nothing to do while I am LFG or trying to put together a group is silly, i would rather be questing or pvp'ing and still LFG.
Ability Delay - blarg....nuff said...
Most of these things have been mentioned with some being addressed so I didn't want to write loads about them but I don't want to pay a monthly fee for a 3/4 finished game.
Have fun if your enjoying it!
Bioware - Good luck fixing it, I do really want to play! (oh an try to listen to your customers more and respond to your community better, glossing over things just isn't going to cut it)
Peace.