How can you tell if armor is any good? You field test it. You shoot stuff at it. You shoot a lot of stuff at it.
Think Progress created a one page timeline of GOP attacks on the Affordable Care Act. After looking at the extraordinary degree the GOP went to undermine and/or kill the ACA, I came away with a feeling that this thing must be pretty good—look at how it survived all these attacks.
What's a bit sad about the timeline is knowing that the GOP has spent most of its time the last several years either trying to prevent people like me from having access to affordable health care, or ensuring that women have little or no control over their bodies—or both. Seriously, GOP, my god, don't you have anything else to do?!