I bought this for a trip to Europe, in some really crowded areas that were known for pick pockets and "slash and grab" theives. This proved to be an essential. I kept everything essential-money, passports, bottle of water, 2.5" wide sight seeing guide and a translation book in it.  The extra lock protection was good. The cross body strap was adjustable so I could hang it under my armpit or comfortablly where my hand could check that the zippers were closed and it was safe. I noticed alot of others with similar bags, so if you are in unknown, crowded spots it is totally worth the purchase.

There are alot of compartments and pockets, so much that I lost a compact in the bag.  I could feel it, but it took a few minutes to find the right opening. :-/

One drawback, there seems to be a rigidness to the strap, probably metal to prevent box cutter slashes.  The strap was a bit difficult to get used to around my neck/shoulder (probably because of the weight of everything I had in it) but I got the hang of it after a few days.

Overall two thumbs up for sturdiness, security and ability to hold the essentials