This was my first stay at WDW concierge so I cannot compare it to others. They got all my advance PSs done for me (even managed to get me a CRT seating 2 weeks prior to my trip.) When we got there, I had them call for all PS changes (and we had a lot). I would call them from a park and they would make my PS changes without being on hold with dining for 10 minutes. It was very convinient. The lounge itself is a nice place to hang out. The food was good. They serve breakfast with fantastic pastries. They have snacks throughout the day and right before dinnertime they serve appetizers which in my opinion, could make a full dinner. We had Chicken nuggets; shrimp skewers; salmon skewers; lentil salad; tofu noodle salad; pb&j sandwiches. They probably had other things I don't remember. After dinner, they have candy and sweets, as well as liquor.
We had room 5501. I asked specifically for a good view of the savannah. We had 2 queen beds. It was in the third building to the right of the lobby as you face Arusha Rock. We were right by the elevators and ice machine (but I did not hear any noise from that at all). The view was a little high, so we were not eye level with the animals (I would think the 3rd floor would have the best views) but we saw a lot more than tree-tops and were very satisfied.
I thought it was worth it overall for the convinience, but it is impossible to eat enough food in the consierge lounge to make it "worth it" monetarily. Oh, BTW-all concierge rooms get free refrigerators. I did not know that.
Also, after we checked out, we could hang out in the lounge until it was time to go to the airport-very convinient.