I ended up being able to use my baggallini way before I thought I would on an unexpected trip to WDW!
I took both of my colors, purple and the dark hot pink one, and loved everything about them! Well, almost everything (I'll get to that in a bit)
I loved how I could whip it around and get out of it what I wanted or needed, (all those pockets! it was amazing!)and let's face it, when traveling to the park your getting into your bag a lot or at least whipping it around a lot to get on a ride. I can't tell you how many times in that day I ended up getting into my baggallini, and I didn't even have the kids with me! LOL I can't imagine how much more useful it would have been if I did have the kids with me, although by the next time we go again, my daughter will carry her own and my son will have a messenger bag of his own.
As for the positioning of where it falls on your back, it's perfect, it's not to big, it does not fall on you like a sling bag does, it falls right in the middle of your back, it doesn't feel akward and you almost don't feel like you have anything on you, unlike the big one I took the time before. I will say if you have kids and want a change of clothes and all that jazz, take a big backpack and put it into a locker, you have the key for the whole day to get in and out of when ever you might need it, and just carry the smaller baggallini with you at all times with the smaller things your need through the day. This is what I did and I'm so glad I did! The only thing I didn't like was the metal thing that keeps the strap cinched would get into the way sometimes, but if you adjust the strap for it to be out of your way, it's not a big deal. I would have to say for those who like to wear tanks this might not be a good fit for you because the strap might hurt you.
For those who found it to be a bit akward at first, I'm totally right there with you, at first you don't quiet know how to put it on, or if you carry like a purse, but once you learn the right way to put it on and feel how great it is to have your shoulders not hurt or your back you won't feel akward in any way, you'll feel like you can't believed you lived without it for so long!
Happy bag shopping!