Meh. The artwork & design is really good. But the same problems with the 3e statblocks are in full force. Take the lammasu, for example. It can cast: holy smite (how many dice of damage does this do for the lammasu's caster level? DC 17 vs which save? save negates? half? special?), prayer (buff apparently not factored into numbers), searing light (how much damage for the caster level?), bear's endurance (not factored in), resist energy (how much resistance at 7th caster level?), bless (not factored in), and divine favor (what + does this give at 7th level?). Monsters with spells are just an invitation for DM busy work that could have been taken care of in the statblock.