1. The AI armies still look the same ?
If you started using Better AI Recruitment during a campaign, it will take time for the AI factions to adjust their armies.Further more the AI never seems to disband units. The only way to make room for "better recruitment" is by loosing units through battle or by creating new armies

2.Which UI mods are you using?
Lux Aeterna [Side] User Interface
Unit Cards used : BullGods Unit Icons Project

3. Unit pack compatibility
unit packs are generaly compatible with Better AI Recruitment. That means the AI will use new units as long as the creator of the mod added the necessary database entries into the unit mod.

4. AI Artillery recruitment and Beast of War units
Most of the barbarian factions will not recruit artllery with my mod and units like beehive onagers will not be used by any faction. Further more War Dog recruitment by AI factions will be very limited.