Thanks for the info. I'm using iPhones, so Project Fi is not a perfect solution. Also, the per line base fee on Ting is only $6/line, so that cushions the lack of data rollover. Don't really worry about texts, since 90% of the time they go as iMessages. I still need to price out how my video subscriptions will be affected. Turns out free HBO on AT&T is worth more than I thought.