Hi! I have never stayed at WL concierge, only AKL concierge. I can only relate my experience. We didn't need for concierge to make any plans for us. I like to do that, myself. We were staying there simply to celebrate our 10th anniversary.
We were sent a gift from the concierge staff and chocolate strawberries and champagne from the AKL. We felt so pampered... In the lounge the staff members refilled our wine glasses with genuine pleasure and provided very interesting conversations. The African CM, Thabo (if I remember correctly. It's been a looong year... ), sat and chatted with our family for at least half an hour. It was just heavenly. Now, I'm a homemaker. I'm used to picking up after the boys, doing the laundry, paying the billls, etc., etc. You get the idea. For me, concierge was just wonderful. DH, my boys, and I felt so taken care of and cared about for those few days. It was definitely worth it to us!