I just got back to my room from spending the day at Epcot. I am so glad that I decided to do the magic bands, otherwise I would have been screwed. I was walking to Soarin at 10:15 this morning, and there was a sign that all fast passes had already been distributed for the day! I feel really bad for anyone who us staying in a non-participating resort or off-site. Essentially you are out if luck if you want to do any if the headliner attractions unless you do standby. I almost didn't do the magic bands and FP+ because I don't like my vacation to be that structured. However, if I hadn't done it, then I would have been waiting in some really long standby lines. I have to think that guest services is getting an earful from disgruntled guests, particularly the ones staying on-site in non-participating resorts.
So far the bands are working OK for us. The only hitch was getting into Epcot this morning. We were in line a few minutes before 9, and it took almost 25 minutes to get to the scanner. The scanners on the side we were on just didn't seem to want to scan the bands. It was really frustrating.