It feels dumb and therefore frustrating to walk along the b concourse the wrong way for a long ways then take the tunnel then backtrack the distance you just did in the other concourse the opposite direction.

No, the distance is not bad in any absolute sense... But frustrating since it is a big u turn

Honestly... I was interested in knowing if I get to see it today or not. I heard it's supposed to be pretty nice and have fun lights and stuff.

It's always fun to get to see something new... It would be fun to be one of the first couple of thousands to use it if it opens this week