I purchased an AI (AE MkIII) last November, it differs from the AW in not having a "bonding" between the chassis and receiver, also the magazine is single stack loading rather than double stack on the AW.
It was purchased to cheer myself up whilst I waited for a spinal fusion (now done!) and also to compete in the NRA Civilian Service Rifle competitions. The sad truth is these competitions are now dominated by "straight pull" AR15's in the UKand during the summer meeting you are lucky to see 1 or 2 Enfields participating in the historic class.
As a sign of continuation it interesting to know that Accuracy International's model the AE MkIII stands for Accuracy Enforcer!