I played since early access and quit about April. Recently came back for about two weeks now but likely to leave real soon. Reasons why I originally left:
Planets: or should I say a few squares here and there surrounded by cliffs or invisible zone walls. Everything is so static and lifeless. No day/night cycle, no ambiance, just boring really. Every single thing about these planets was put in place for a themepark purpose. I was hoping for large areas to drive off into and actually explore. They don't have to be massive like SWG was, but at least something more. Everything felt so confined. WoW actually felt like an explorers paradise compared to TOR.
PvP: Ok so I get to zone into the same 3, now 4 warzones over and over and over and over...I did this for years in WoW, was hoping for something more in TOR. Sadly, I was very disappointed. Never have I experienced such a lame PvP experience than what is this stun fest that is TOR PvP. Nothing irritates me more than being chain stunned while I am beat to death all the while not being able to do a thing about it. On top of this, there is so much cc that is not effected by resolve. Finally after getting killed I can now look at my resolve bar dissipate to nothing as I wait to come back into the fight so it can happen all over again. After coming back and now experiencing the stun bubble situation, I think its safe to say they are moving in the wrong direction.
Ilum: no explanation necessary.
Horrible space experience. Was hoping for a more JTL space experience like in SWG. I have done one space mission in my entire playing experience so far and I have absolutely no desire to do one again unless something drastic changes.
Race options. Basically humans, and humans with different colored skin. I read the BW reasoning and I think it's a lame excuse. This is Star Wars. let me experience it how I want.
Since returning I will add lag to the list. I ran the game really well when I left, but since returning, something bad has happened to this game. Being on the fleet is like a slideshow. Warzones lag for me real bad now too. Not sure what happened since I left.
I followed this game since 2008/2009. Had such high hopes for this game, but like most, was very disappointed. Hopefully one day some company out there will make a decent SW game. I just hope next time it isn't by a developer that has no experience in the industry.