So, after me and Giantz played up until level 12 we can pretty much sum up the beginning -stretch-.
While the game isn't as linear as most mmorpgs, you still do get the basic kill x or travel y or transport x. The game does a GREAT job, however, on making these linear quests interesting with the dialogue options because choosing one different chat option can change the entire quest and the outcome of rewards, actual events and quests ahead. Once we hit level 10, we both picked are job specializations. I'm a shadow, speccing in melee stealth dps and he's a commando speccing in healing. Since we both started on different planets, we finally met up in the same city and started doing my storyline as a 2 man co-op. We did the first instance, which, by the way, is HUGE and took us about an hour+. The first instance is esseles and it is basically you are on a republic transport ship and are attacked by the empire because one of the passangers is a republic ambassador. The instance carries on throughout the whole HUGE ship, filled with about 4 bosses, and then you have to board the empire ship and clear that. Definitely my favorite MMORPG i've EVER played and Giantz can say the same. Right now we are in the market district of corrusant doing missions that involve strippers, gangsters and smugglers. Finished a few heroic 2+ instances and such around there and we're definitely having a blast. By the way, we each have a companion so it's more like a 4 group of people, my companion is the lizard who is a standard tanky bruiser with a staff-like weapon and is focused on hunting while Giantz's is a black man with a minigun. Quite good stuff. At level 14, we're about to start the world based and instance based warzones(or PvP) and hopefully get some good loot and have a fun. They did a pretty good job at balancing PvP as far as buffing your stats if you're too low of a level, like, say a level 15 fighting a level 30, depending on the class you are you'll actually have a fair chance.