We have one and LOVE LOVE LOVE it. we've only had ours about 2 yrs though - we lost our net soon afterwards during a thunderstorm it started to come down & we rigged it back up but eventually lost the whole thing.
My girls are on it daily, as is the neighborhood kid & I even let a friend come over earlier this week when we were gone so her kids could jump
I have not told my insurance company - I never knew they wanted to know

I knew they'd want to know about a pool but never thought about it with a trampoline.
My brothers fam has had one about 7 years I guess none have their 4 kids have been injured from it & they have friends over all the time on it & as far as I know none of the kids have been injured either & they do the flips and everything
One of my girls did break her arm - but she wasn't jumping when she did she was climbing off when she slipped & landed on it. It happened just about 3 months after the neighbor girl broke her arm riding a
scooter on our carport right in front of me.