We got kttw cards at check in last week. We didn't have to ask for them. We were able to pull paper fastpasses with them. CM was standing by FP- machine, noticed my wristband, smiled, and didn't say anything to me about pulling paper fastpass. Most CM's seemed very understanding about the MB testing phase. When they work great, they work great. When they don't, they are a pain! (when we used MB for Buzz, CM claimed that my son didn't have a reservation for the ride, so she took away his barnstormer FP+. Later it turned out that the reason we were 1 pass short for Buzz was because my daughter somehow hasn't scanned. So my son was charged twice, my daughter not at all. And then, because we didn't find out what had happened until using a kiosk several hours later, my daughters unused credit was stuck, and no longer usable- so, for our party of 6, we should have had a group total of 18 reservations for the day, but after riding buzz, we had only 11, instead of 12 left.) I couldn't get the disney app to work in the park- iPhone 5 with verizon service (didn't work with disney wifi either) of course, I wished this all on myself after praising the MB in an earlier post!