I've had Viking bags for years and always had good luck with them. The included mounting brackets are a little dodgy, but I've always been able to make them work with a few bucks worth of bolts from the good hardware store.
After a mishap at the carwash where some subhuman left a bunch of latex pain all over the place, hidden by foam, and I inadvertently repainted my bike, I was able to clean all the metal bits (Goof Off FTW!) , but the pleather saddlebags wouldn't give up the paint.
I replaced them with a new hard painted model. I ordered them without shock cutouts and they wouldn't fit right. They also had a tiny scratch on the back of one of the bags and, when contacted them about returning them, I sent them pics and told them about it admitting that it was only my word it was already there and I didn't do it while holding the bags up for fitment in case it might affect the return. Not only did they take my word and swap out the bags, they even refunded my a discount on the purchase price.
When the replacement bags showed up, due to the shock cutouts, the standard mounting kit just couldn't be made to work. I contacted them and sent them a ton of detailed pictures showing the problem. With a day or two, they sent me a different mounting bracket that looks much like half of their quick mount bracket that worked perfectly (after the obligatory trip to the good hardware store for oddball metric bolts with long enough threads).
Other than the fact that the model with the shock cutouts also has a pipe cutout that kills a ton of useful space, I couldn't be happier with the results. The only thing I think could be better would be Corbin Beetle bags, but they're 6x the price.