I used them a few times, sure. They were fun little toys but they were way too powerful. I filed them away as a weapon I'd never use because they made the game too easy. This was worsened with the Nuka Cola Chemist perk where I could made hundreds of the things...
More like dozens....but I tended to stockpile them and just carry a couple for raider initiations. :nuke: I never was big on explosives, I preferred the Lincoln Repeater, Metal Blaster, and the Xualung. I also liked to put on the CSS and take Jingwei's sword and do the Angel of Death thing now and then.
Like the Experimental MIRV though, it was really fun to just let loose with those things! It just wasn't a good weapon for the game.
I loved the MIRV...the problem is there are only so many things in the Capital Wasteland worthy of being shot by it. I used it to take out the Behemoth at Evergreen Mills (and 90% of the raiders) from the cliffs above......even that was a ridiculous amount of overkill but it was always amusing. Weapons like that which do over the top amounts of damage are fun....but if the devs don't limit how often you can use it self-control is required lest they take the fun out of the game.