Pros:

- freaking addictive!
- the speed
- the fine line between hauling a** and dying
- the warp support
- crunching your neck in the bottom warp area after finishing the shorter circuit (touchdown!)
- challenge spots like the "cylinder of death"
- a few new tricks you can pull once you get the hang of it

Cons:

- no auto-respawn of players in co-op
- begging for more circuits, more speed!!!
- unlimited adrenalines would rule

Conclusion:

Looooove this map!!  After about 6 hours in the middle of the night with a few friends, I was getting the hang of building up serious speed.  I was able to launch myself from one circuit to another when I wasn't launching out into the ether on accident, which made for great new challenges.  In co-op mode with more than one survivor, dying meant voting to restart and waiting, so an auto-respawn would *really* help.  I would love love love love love to see more, bigger, faster circuits too.  Circuits that when you get good enough let you launch to other circuits would be awesome.  Unlimited adrenaline would be great too.