Finally got in my 2 nights of raid time and managed 10/14. I am extremely happy with the hunter changes. I think we are sitting in a good spot damage wise though i do believe other classes will widen the gap on us with higher ilvl gear sets. The opener burst (800-1mil burst i saw) seems appropriate considering the removal of readiness and overall has made dmg CDs feel like actual CDs as opposed to extra dmg ability. Id say on average I got clocked on WoL at about 220-230k range and I made a handful of mistakes. Plus I havent tried out AMoC yet for straight single target encounters which ive heard it pulls slightly ahead of BS.
EDIT: I played BM the entire week. And as stated in other forums through my own testing and simulation I found for myself I simmed best with a Crit => Haste > Mastery. I believe the original stats at my 539 ilvl were around 12k crit, 10k haste, 6k mastery (maybe more i cant quite remember the value of this stat). So my testing was finding theres a correlation between crit and haste and a balance act between those 2 stats will bring optimal stats for lower ilvl currently. As I pick up more gear it wouldnt surprise me to see them become more equal at higher values.