Conscious I.V. Sedation. Has anyone had it? What is it like?

Im getting three of my wisdom teeth removed on thursday morning and im going to be under this type of sedation. Im not really sure what to expect. I guess they will slice into the gums, break apart the teeth, and rip them out piece by piece.
I already had one removed, but it had come partially through the gum and it didnt require anything but gauze and vicoden for a day and a half.