Most banks have had advertisements bordering on scam and malpractice to explain why the SARON adjustable rate is better than locking in a fix rate.

I've literally had to explain to like 5 people the amount of risk they were taking on by holding on to a 0.8% Saron adjustable instead of getting something like 0.9-0.95% fixed rate for 15! years. It's unfortunate that most people simply don't intuitively understand that when interest rates go from 1% to 2% your payments double.