I love it, finally support for many many archetypes.
Sad to still see eggs not getting real support (I have been asking for it since... november?), but alas.
Also very weird that Deathwatch has never ever returned for Abyssian: only cards with it are in Core.
Zeal, Celerity, Backstab, Blast, Dervishes, Grow, Rebirth, Vespyrs, Infiltrate etc all got stuff.
All in all, yes, I think the best expansion in a long while and just very good! But it's really hard to compare. It's good in the whole that there is.