Well, when you hold a bag in your hand, you look at it, examine the stitching and hardware, you should be able to get an idea of whether it will fall apart or not.
I have never heard of that brand before - but I have bought stuff at TJ Maxx before and they do import theses unknown Italian brands from time to time. (They also do this at Winners, the Canadian equivalent to TJ Maxx, which is also where I can find some unusual, one of a kind bags).
Since you did see it in person you should be able to tell whether it would fall apart. Compare it with other bags in your own closet that you considered to be well made, examine the stitching, maybe even tug it a little, put stuff in it and see how it holds up, how are the straps are made, how are the connecting hardwares made, etc - you have all the right to do so and test it out.
Good Luck