I guess people have forgotten how to play destiny.
Kenetic weapons were (in d1) for the most part are carp when it came to dealing with bosses, not much has changed there. They are just now also crap in PvP as well. But they work fine against none shielded enemies. Shielded enemies you need to use your secondary/energy weapon.
The only time I ran out of secondary/energy was fighting the boss on the strike. That was partly because the random (overall he caused the strike to be pretty lacklustre, running through it like it was his 100th time instead of sight seeing and stuff) in our group thought it was a good idea to kill off all the enemies before the even got to the area we were fighting.
I liked the openness of the maps for the strike, it seemed a lot bigger than d1's strikes.
As for the power ammo, I got some semi regularly, though I don't think it would hurt if they tweaked up their drop rate a little.
The starting grenade launcher the hunter had felt a little underpowered.
Don't know why people are saying the graphics are about the same, the lighting in the game is a definite step up.