The Remington made Marlins( or Remlins as they are called) definitely suffer from some quality control problems. Just go to the Marlin Owners Forum and you'll get an earful. I think Remington quality in general has suffered.
As far as Henry's go, they are good guns and have excellent customer service, but they are heavy and expensive. If I were looking for a lever 30 30, I'd look for a used Ct.-made Marlin or an older Winchester 94.
