Of course your SA recommended it, they make pure profit off all those insurances. Most of the time, they get commission for how many of those they sell too. They wouldn't have these policies if they didn't make good money, so I say skip it - as I say to the wheel/tire coverage, paint protection, and any other crap they try to offer. Between the limitations and the up front cost, I don't see the point. I've had my share of cars, it's never come back to bite me yet.
'15 i3 REX // Capparis // ZGW // ZTD // HK // 20"
20% Tint, Coding, LED High Beams/Signals, Painted Reflectors, MAX2 Hardwire
Past: F30 335i, E90 328xi