This is all good news. Would you Xbox players and former beta testers give this poor PS3 player details on the perks and how they're working out for you thus far?
4 perks of 25% damage increase
1 perk that doubles health and stamina (confirmation? not at my xbox)
1 perk that doubles health gained from feeding
1 perk that allows you to feed on most creatures as well as NPC's
1 perk upgrades fear howl
1 perk upgrades sight howl
1 perk upgrades wolf summon to ice wolf summon
1 perk upgrades Ice wolf summon to insanely powerful werewolf summon.
Its glorious.
^^ for above comment, you do not have to get the perks to get aela's quests. I got the DLC before I did the totem quests, did the totem quests for her, then unlocked the associated perks.