My wife and I make just under the tax credit cap, so we get a premium tax credit of over $20,000. The AHCA replaces that with a $4000/person credit, which, if my plan premium remains unchanged, results in an extra $12,000 out of pocket. Last year we spent $13,000 out of pocket (I had cancer surgery and met my out of pocket limit plus some out of network expenses- same thing happens this year, and next) on a household income of $70K. So we'd be looking at $25K out of pocket, more than 1/3 our income. 
That's assuming the state doesn't waive the protections that prevent Premera from quadrupling my rates next year. At which point having insurance would be no help, we'd be bankrupted. That sort of system isn't really sustainable for the country either, my personal situation aside.