My experience was about like the OP's, All was well setting up, buffing, even flying out of theed into Mos Eisley wasn't bad. Once I had arrived in anchorhead, Lag city. Was knocked down with a group of people who also appeared to have similar issue. /stand command was not working, or what appeared to not work, after about 6-7mins my toon stood up. My only consensus on the whole thing, is lag, very extended one as commands where not firing at all, but did after 5-7 mins to just lag out on the next round of commands.

Was cool to see to say the least , was fun while it lasted.

Look forward to getting back in shortly
/mood Patient