I would only assume the volume radio controls/ cruise controls would work. maybe the bluetooth controls...but as far as being able to scroll through the driver information center and select veh info, phone, navigation, and other opens, I will assume the drivers info center gauge cluster would need to be changed, It will def require a tech2 computer and some GM assistance to make it work, People who have base model cruze's have been doing this for a while cause they dont come with cruise controls, but if you notice on LT models the D.I.C on the cluster is different to say the least on the silverado and sierra work truck models, still to be able to control radio and blue tooth incoming calls will be a upgrade for the better,
as far as the surveys go, working for a gm dealership they are a huge deal, some dealerships more than others, its almost a lottery for the owners of the dealerships to keep the customer happy and coming back, u might be out of warranty so to speak by 15k and tranny goes bad, and are a loyal customer and have a good svc record with your dealer, next thing you know you have a new tranny for a predetermined participation fee, where if you went to ford they would tell you pound dirt so to speak, or for example many other manufacters... The survey is a big big deal where I work. So yes they will treat you like a king everytime you come in to keep you happy but dont take it for granted. just build a good repor so to speak with them and keep it lasting. Also give them a good survey once they have met your needs if not let them know before you fill it out and send it in lol. In reality one bad survey can end your career where I work. Its your livelyhood. Its hard to make everyone happy, and sometimes you cant do anything to make that one person happy no matter what. I always tell people though I didnt break it buy it or build it, I just bring bad news and tell you what is wrong and needs fixed....being truthful is always best

good luck keep us posted.