I stayed there last August, and while it wasn't a bad stay, it wasn't as magicla as I would have hoped for.
I think my biggest gripe was this:
The power went off while I was there. I was in the shower and then there was no light. It was frightening to be in a completely dark bathroom with no light.
I'm not blaming the power outage on the concierge staff. But I don't think they handled it well at all.
After feeling my way out of the tub and finding a towel to dry off, I wrapped up in a robe and tried to call the concierge desk. No phone service. So I put on some clothes and walked down to the desk. I was told the power was out, they didn't know if or when it was coming back on. They seemed exasperated and let me know it in their manner. Now I don't care if I was the 80th guest to ask, but the attitude I got from them was inappropriate.
Also I didn't much care for the lounge. It was a bit formal. I prefer something like the AKL where there are some comfortable seats and a few tables. It seemed like most of the seating at the YC lounge was formal chairs at tables. It just wasn't inviting to me. I do like that they have a dress code for their lounge. I do'nt like that you ahve to ask for soda and water.
Would I stay there again? Probably not. Was it a terrible experience? No, it was OK, but not up to the level of other WDW concierge floors.
Anne