We rode it this morning, they opened it at 10 just as we got in line. We had a short 15 minute or so wait and were on the ride. Most of the line will be outside, there is very little inside line (at least thats how it seemed) 2 rooms of line only). It's pretty similar to what I remember from WDW, You lift the guns out which it a lot easier to shoot, especially if you've got a 6 year old manning the turn joystick. Everytime I went to shoot she'd spin us around. The premise is the same, but the scenes are different. At the end they tell you what level you are based on your score, then give you a rank. I remember most of us were level 3 with one level 4. We had 6 people go on, 4 adults and 2 children. We rode 3 and 3 and were fine, not too squished. The kids sat in the middle and ran the joystick while the adults fired. My daughter didn't want to shoot the gun (I think she was afraid something would pop out at her).
If I remember my camera I'll get some shots next time we ride.