I have the usual assortment of bags; Luggage Works, Strong Bags, and a few other bags not designed for continuous duty.
The LW is the bag I keep grabbing for the 30 to 56 days in Africa. It's FAR from perfect; most of the zippers are toast, it's WAY too heavy, and the little wheels won't go through carpet / contaminated walkways.
My comparison to a SB won't be fair, because they've redesigned it with better zippers (all mine broke, just like LW), improved wheel holders (mine broke), better rivets to hold it together (yes, mine literally sheared off), and it is WAY lighter than LW. The single issue that I would probably have is the "off-the-shelf" pull handle. As flimsy as the cheapest luggage you'd buy at Walmart / Target / 99 Cent Store. I don't know if that's been improved.
I can't honestly say that either is ideal for the job, but I find that between the two, I keep gravitating to the LW.