I'd be careful of a no-brand, but if it looks alright, some of them can be better saddles than some of the big brand names. My trainer has a no-name roping saddle that is one of the most well made and honestly comfortable saddles I've ever ridden in.
However, I would steer WAAY clear of Buffalo saddlery. I've ridden in a few of their saddles and not only were they uncomfortable for the rider, they are VERY poorly made. Every single one I've seen on a horse has pinched, rubbed or sored the horse even when properly fitted with a properly fitting pad. They also tend to wear out really easily. If you are doing any kind of heavy riding, I would wager it would probably fall apart in less than two years.
I would be very weary to buy a cheapo saddle like those ones. They often times don't fit any horse, don't last long, fall apart, you get what you pay for. You would be better off to go buy a name brand used saddle, its not new but I will bet you money that it will last longer than those two saddles.