When you're a National EE, the good news is that you get Emerald Club points for your Enterprise rentals. The bad news is that you have to stop at the counter like every other Enterprise customer and talk to an actual human being in order for them to assign you a vehicle and get you on your way. I don't believe you can go straight to the lot, but will withhold judgment on that pending someone saying that they've successfully bypassed the counter at an airport.