Say what you want about shyster lawyers, that is one pretty f**ked up "loan".
It’s a negative-amortization loan. There’s nothing wrong with it IF YOU KNOW WHAT IT IS AND HOW TO USE IT. Hint: if you have a decent net worth and wish to improve it, then this loan might be a way to go.
If you’re living paycheck to paycheck, can barely afford the “starting” payment, and have little or no cash reserves, stay away.