Cautiously optimistic. However it's one of the best titles of all time and there was a lot of awesome stuff in the trailer, including my girl Tiny Tina all grown up. on April 3rd there will be more information on their website and there already has been a lot of spoilers/ other things pointed out since today's trailer.
Second, their entire presentation was complete horseshit. I felt they kept the crowd hostage with games no one cared about and knew they had them by the balls because of the new Borderland game announcement.