I think it depends on what you are looking for from concierge. We were at the YC in late Sept this past year and again in early December --both time concierge. The service we received was excellent. While there in late Sept. what we found most offensive were adults from conventions who thought that since they were there as a group that they could take over the lounge. They were loud, took up a lot more space than needed, dropped tons of stuff on the floor for staff to clean up and many left us the feeling they were entitled. Yes, there were kids there but it wasn't overwhelming. In early December we found a nice mix of adults and kids. Typically there were 4-5 kids there at any one time (we are older parents -- married 25 years - with an 8yr old), the kids TV was kept to a minimum with the larger lounge TV being the one that was prominent. The one thing that bothered us was a particular family who let their child play with the serving utensils and then put it back as if nothing happened. Of course, we picked it up and let the staff know -- they replaced it quickly.
As far as offerings go -- Corporate Disney controls what each CL can offer in regards to food items. All "menus" must be approved by them and no changes can be made. My DH thought that the clams, mussels, daily soups, ribs, etc. were good offerings at the YC. The fish and chips ... well was just that ... fish and chips. That said, he really liked the offerings at the AKL much better and we did talk to the YC (who is also in charge of the BC) concierge manager -- we found out that while he might like to change it, he isn't given the luxury to do that without a long approval process.
In lengthy discussions with the concierge staff at the different concierge lounges we picked up tidbits of information regarding kids, families, adults, trends etc as well as made observations of our own trips (at least yearly often more since 1993). More recently, in the last three to four years, one of the biggest things we noticed is that staff (at all lounges) were continually dealing with kids whose parents neglected to "supervise" the acquiring of food, behavior, etc. Utensils being fingered, food being fingered and put back, kids walking on coffee tables, kids yelling and screaming in the lounge and constantly turning the TV up. Most staff members were very cordial and when we mentioned something to them, they said that they understand but wish parents would remember that even on vacation they need to watch their kids. (Of course, they would never acknowledge this to most guests.) Then there were the adults who had forgotten their manners, right alongside the kids. On the weekends, they see many more "families" using the concierge services and the lounge -- which we definitely noticed. When their numbers increase they are less effective in keeping up as their staffing doesn't increase. Most of them really want to provide good service but are often stretched -- particularly at times when concierge is sold out or almost at capacity.
The lounges at the BC and the YC are considerably smaller than the Poly or the AKL. That said, the YC doesn't have as many rooms to "service" as those other properties. When we were there, even on weekends, it was never "packed" unlike what we found at AKL. The YC does have a comfortable couch and a nice "patio-balcony" with tables on it. Unfortunately, the balcony faces the entrance of the resort -- nothing exciting. We found the lkounge comfortable, although, it is a tad bit more formal in furnishings. The YC concierge staff, which rotates with the BC, was very good. Excellent service. Always a smile. Willing to help. Engaged us in conversation, etc. Couldn't have asked for more.
One of the issues with the BC is the small lounge and concierge's popularity with young families with kids. To be blunt -- it simply isn't big enough for the number of guests they are being asked to serve. You pick this up just from the different posts on this board -- once you've been there -- most agree.
As far as the most adult-oriented concierge -- I'm not sure you will find one at DisneyWorld. Perhaps GF might be. As families become more affluent, they are enjoying the concierge more and more. You see younger families now staying at this level where in years past that might not have been the case. The YC is also a tad bit more adult oriented since it is classified as a "convention hotel" and often many of the rooms are taken by those attending conferences there.
It is so hard to be able to tell if Concierge is a good "expense" for anyone. I think it depends on what you want. If we had paid for it, simply for the food offerings we would have been extremely disappointed. We loved the double sheeting on the beds, the turndown service, the exclusive desk, the snacks throughout the day at the lounge, etc. We never waited in line to have a question answered and when an issue arose it was handled immediately. I think for us it is the service and the convenience. And at the YC/BC it is SAB, also.
If you aren't sold on concierge and it is stretching your budget so that it is uncomfortable than I would guess that you might be disappointed.
As far as changing your reservations -- that is what the CROs are hired to do -- I wouldn't feel bad about changing and if you get a CM with an attitude I would simply call back. We use a TA that is used to hearing from us and in fact for our next trip she has changed our ressie four times. I would do whatever you feel most comfortable with doing.
