I've only used cheap Cobra brand PMRs and the range was meh. Outdoors any topology would break them up and indoors I was better off shouting. Other brands and experiences are available.
I've got a Baofeng UV-5R now with much better range. In theory, of course, I'd never use it, you understand, as I don't have a frequency loicence. I certainly wouldn't use it on PMR frequencies so that I can talk with people using PMRs, even though that's the safest way to ensure that it doesn't interfere with any actually important radio use.
Using them on PMR channels would be like doing 90pm on an empty motorway at 3am, while some rando frequency could be like doing 90mph at 3pm outside a school.
In other words, both illegal, but with different consequences and morality. You shouldn't do either, it goes without saying.