Not going to lie, I'm kind of wary about this. They spend over 80% of the page talking about why not to buy AR500 armor instead of giving us information on their actual plates. Also, why does their dimensions chart say "Gamma Plate"? Those aren't the specs for TAP Gamma plates (which are good plates). Their product photo shows multiple cuts of armor, but there aren't any options for choosing the cut in the drop down menu. Also, only claims of testing to NIJ 06 standards (not NIJ certification) is a bit suspect, especially without posting the independent lab test data.
As always beware the limitations of UHMWPE only plates, they don't stop SS109/M855/M855A1.
As for me, I run a Mayflower APC w/ ESAPIs (and no they're not stolen US Gov't plates).
I tried the TAG Banshee for a year, but didn't like how bulky the shoulders were and how the release buckles on the shoulders prevented me from shouldering my rifle.