We have our luggage transferred from WL to the Poly, last time we did a late breakfast at 11:00 at the GF(ALice in WOnderland). We called Bell services at the WL to get our bags at 10:15, drove to Poly, parked and rode monorail to the GF for late breakfast. When we came back to Poly our room was not ready. We had packed a swim bag and swam till around 3:00 until our room was ready. Other times we have just gone straight to the parks and had our bags transferred, very easy to transfer bags. My only complaint is that they never deliver our bags to our room until we arrive in the new room and call bell services. It would be nicer if the bags were just there when we arrived in the room. I have a sneaking suspician that it might be related to getting a tip(however I would gladly deliver a tip to Bell services later if they would deliver it to the room before I got there). The biggest hassle about a split stay is not the transfer of resorts but packing things up. All in all, not really a problem because we have to do a split stay. My family cannot bear to stay at just the Poly or WL, they have to have some of both. A good problem to have in my opinion. A few times we have gone over to the other resort early and our room was ready.