Free cancellations 24 hours? Good business class? Lie flat?
Lie flat on widebodies (some IST-TLV flights are wide body, but most are narrow - it's a pretty short hop).
They lay your "bed" nicely for you and have great service. IME ksml was same as economy with a sticker that said business.
I was lucky last time I flew there was a storm in IST so they protected me on AA via PHL which was flying at the time and had a great business class.