I had heavy sedation for my ec. I watched the anaesthetic going into my arm, felt wonderfully light and woozy and then was waking up in recovery. I felt wide awake, but very relaxed, straight away. I had no pain afterwards. I would definately recommend sedation compared to GA as long as you have no reason to believe that it will be a complicated procedure for you - like severe endo or something like that.
It took me longer to recover after a laparoscopy, and because they put a tube down you throat, I had a cough and laryngitis after.
I had sedation and didnt feel a thing although Tony says i kept saying i nedeed more and more so they gave it to me they give you what is a hypnotic so although you may think you feel a bit of pain you dont remember a thing when you come round. (i wont tell you what else i got up to as i was embarrased that my mouth could run away with me like that )
Its entirely personal preference and i am sure some of the girls will give you some advice.