5E/D&D Next Hits RPGNOW

I was browing RPGNOW and came across this. It's the first 5th Edition/D&D Next product on the site.

The adventure is from the D&D Game Day held this past June. 

I'm hesitant but excited for 5th edition. I've played every edition of D&D so far (as well as a lot of off-shoots) and I always seem to have fun. Honestly my only issue with this product is that the rules haven't been finalized (queue comments about Wizards being money hungry).