I have personally had a SmartGuard plan
come through for me, but it's my understanding that they have stopped covering DJI products.
I purchased a plan for my stepfather when I got him a P2V+ for Christmas, and he had a slight mishap earlier this week. When we went back into his account, I noticed you couldn't register anything from DJI to your account. Thankfully, we registered his plan back in December, so I'm
hoping they will honor it. (He's at least made progress with them, though their registration systems are terrible)
They have an employee on the Amazon reviews discouraging people from purchasing the plan for DJI products. For a while it was 'left hand didn't know what the right hand was doing', it seems to have come full-circle.
Honestly, I think they stopped doing it because there were a lot of brain-dead people that were using it as 'flyaway insurance', and complaining when they wouldn't cover it. How stupid do you have to be to expect to pay a company $80 (at the time) to refund you $1200-$1300 for a product that can't even be returned to the manufacturer.
TL;DR: I was fortunate, but I wouldn't recommend buying it because I have personally seen evidence that they no longer cover DJI products. Or buy it, then immediately try to set up your account, so that you can have it refunded when you notice the same. (Who knows, maybe they'll do it again, since I see they've raised the prices)