Chart of Self-Defense Gun Owner Insurance Programs Compared
at www.concealedcarry.com. They keep it updated. The last update was last month.
Features of plans have changed over the years. If any program had something really negative that kept people from choosing it, it usually got changed. For example, a few years ago, reimbursement for criminal legal fees was a big difference among plans. Now only the NRA plan reimburses after the verdict. The others pay up-front. As another example, a few years ago, several plans didn't cover civil legal fees. (Even if the state law says you can't be sued for a justified use of lethal force, you will be sued, anyway.) Now they all do, although they don't all cover the damages if the judgment goes against you.
At one point a couple years ago, the NRA plan announced it wouldn't cover people who used a 1911 or a revolver. (Why not 1911s I sort of get. Earlier models had free-floating firing pins. I don't get why not revolvers.) After much uproar, they decided to reverse that policy. The NRA plan is still one of a few that doesn't cover non-firearm defenses. If you think you might use a knife, a baseball bat, or a large can of tuna in self-defense, you're on your own with the NRA plan.
BTW if the defendant is found guilty of criminal charges, none of them cover civil charges, and they all want their money back for the criminal charges. Anti-2As recently like to call carry insurance "murder insurance," but none of the programs are in the business of subsidizing murder, attempted robbery, illegal discharge within city limits, or whatever other crime.