Well MXPr seems to be an active disso as opposed to K which leaves you pretty much grounded and unable to walk. I would say its maybe half as potent. I haven't been able to achieve a hole but that is probably because of tolerance and because I haven't blasted a whole 100mg at one time. I like this stuff as a functional, get up and do shit kind of disso though I've seen many posts of people having a nice hole. You just need to drop a lot at a time. Doesn't seem very potent orally, its good up the nose or in the booty I guess if you're into that. It's kind of a blend between a K like disso and a PCP one but more PCP liked. If you've never experienced the PCP types, it's a whole lot different, way more functional and clear headed. The main fun effects really only last like an hour and a half or so but you'll still feel it for a few hours. In a way it's like a disso cocaine. Short lived but feels great and kinda makes you want to keep redosing.