I have a 3-year-old son and since I'm always running, I'm tired of digging around in regular purses for all my stuff!
However, I do work in a professional industry as well, so I can't just schlep any old bag with me.  This one is stuffable without looking sloppy.  Keep in mind, though, I am using this as MY bag, I'm not really carrying extra kiddie stuff in here; you would definitely need a larger bag for that!
**Pluses:
-This bag has a spot for everything so I know exactly where to go: a full-length zipper back, a front flap section which is zippered, under the front flap is another zippered compartment, which I find perfect for holding my phone--even if I don't zip it, the flap goes down over it, so it won't just fall out (the front flap is magnetic so as soon as you let it go, it clings right back to the bag, which I LOVE), a small section on each side (one for MP3/one for water bottle, but I just use for my work ID and hand sanitizer bottle).
-It is easy to get into one-handed.
-The strap is adjustable so when I'm out for the day or at an active place, I wear it as a cross-body for security.  For everday use, I wear it over my shoulder.
-The bag itself is very light, so it won't weigh you down (unless you pack it full like I do!!!!)
The ring where the strap adjusts is perfect for clipping my keys!  Otherwise, I never know where they are!
**Minuses:
-I prefer a bag that is wider and more shallow, rather than deep and narrow.  But that's just a personal preference and I've learned to flip my stuff this way so it fits.
-The bag does fit all my daily necessities, but I know some people out there are saying a diaper will fit in this; MAYBE, if you don't have a lot else in and you can cram it a bit.  The bag is just a tad too short for a diaper/wipes.
Overall, this is a well-made bag that is less expensive than comparable ones, and I'm really happy with it.  I'm sure it won't be my last eBags purchase.