It's been quite a long time since we haven't stayed CL, but I've always found the lobby concierge to be very helpful and polite.

Just remember that if you call for help from your in-room phone that won't be a person who is actually in the lobby of your hotel, so if you need something special it is best to physically go down and talk to them face to face.
I hope to use the IPO after we get there. When we went to 2003, we were told we could not because that was CL only, but we were Platinum, but it did not matter because CL guests got to use the IPOs...it was kinda confusing. Platinum plan gets to use the IPO to book reservations etc before the trip just like CL, but does not stay in the CL rooms unless they book CL rooms.
The last time we went we were upgraded to CL so we had no problem. This time around, I asked the IPO if we would still have access to them and they assured me we would and that Platinum plan does have the IPO help, even after arrival, but after the first trip when we were turned down and had some major issues...I'm a bit concerned!
If we need to make changes to the plan we won't have the right help if we do not have access to the IPO staff. Last time the fireworks cruise was rained out, and the CL CM were able to get us on another boat the next night. (Platinum plan guests share boats, so it is not just a regular 'reserve a boat' setup.)
When we went in 2003, we had no one to help us when stuff was cancelled, to help us reschedule. Everyone just kept saying they did not know or could not help...very politely. We never did get turndown service back in 2003, was told that was for CL only and we were not CL (But it was a platinum plan perk..again, confusing!)
I just hope everything goes smooth. We have a lot of things scheduled (many tours, boats, reserved fireworks viewing, Cirque, fantasmic seating, restaurants etc) and it was all because of the fantastic IPO!
Thank you for your advice. I just hope nothing cancels! (We had bad weather last trip!)