Those 70-plus cases include a few high-profile ones you may have seen in the news lately. A man in Florida said his Jeep Cherokee went up in flames after a Note 7 exploded inside, while a six-year-old boy from Brooklyn suffered burns when a Note 7 blew up in his hands. Although 70 cases may not seem like that many, the Consumer Product Safety Commission already issued an official warning asking people to stop using the device. Various airlines all over the globe also banned passengers from using the phone on their planes.
Swapping your Note 7 for a loaner phone or a new one that's been declared safe really sounds like the best option at this point. If you haven't looked it up yet, check out Samsung's explanation on how recalls will work within the US and ask your carrier what your choices are.