Actually, this isn't strictly speaking, only a pure opinion in the basic sense (i.e. "chocolate is yummy"), but rather a reasoned argument made up of facts and linked concepts that build a case for consideration. The opinion that you like it, and the follow up that you don't care what anyone else thinks of it, are just opinion, and if they are to help answer the questions posed by the original poster, you need to build the case that has informed your opinion.
Unfortunately, that's actually not a reasoned argument against something, but rather a dodge. A rhetorical smoke screen to mask the fact that you aren't making a point, yourself.
I have not fired a Judge and the fact that I haven't pulled the trigger of one on a live round has nothing to do with an objective analysis of it's suitability for a task. I haven't jumped out of an airplane without a parachute, either, but I know enough things to explain why that's not the best choice for reaching the ground safely.
I guess you can say, "Oh, if you haven't done it then you really don't know!" but that's fatuous.
That might be part of a reasoned argument, if you have observations about how that payload shot, how it patterned, and importantly, how it performed in penetration against muscle tissue and bone. Then compare that with what's known about how common defensive purpose cartridges and firearms perform in the same situations. And compare and contrast your ability to make hits on target at speed, with that firearm as opposed to other standard weapons people are familiar with. And give some weighted consideration to secondary considerations like capacity and reload facility, reliability, sights, etc.
And that's the crux of my concluding point from before. You WILL take your chances. And some of your odds are modified (downward?) by choosing that gun.
Do you feel that you're IMPROVING your chances by choosing that gun over something more conventional? If so, please explain. THAT would be useful information. Why, in that moment of instantaneous and dire need, this gun would be BETTER than a common sidearm, shotgun, carbine, etc.?